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55368750 = 23552953
BaseRepresentation
bin1101001100110…
…1110000101110
310212012000122110
43103031300232
5103133300000
65254424450
71241424633
oct323156056
9125160573
1055368750
11292883a8
1216662126
13b617c98
1474d418a
154cda850
hex34cdc2e

55368750 has 48 divisors (see below), whose sum is σ = 138459888. Its totient is φ = 14760000.

The previous prime is 55368713. The next prime is 55368787. The reversal of 55368750 is 5786355.

It is an interprime number because it is at equal distance from previous prime (55368713) and next prime (55368787).

It is a junction number, because it is equal to n+sod(n) for n = 55368699 and 55368708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17274 + ... + 20226.

It is an arithmetic number, because the mean of its divisors is an integer number (2884581).

Almost surely, 255368750 is an apocalyptic number.

55368750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 55368750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69229944).

55368750 is an abundant number, since it is smaller than the sum of its proper divisors (83091138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55368750 is an equidigital number, since it uses as much as digits as its factorization.

55368750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2983 (or 2963 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 39.

The square root of 55368750 is about 7441.0180755055. The cubic root of 55368750 is about 381.1432559712.

The spelling of 55368750 in words is "fifty-five million, three hundred sixty-eight thousand, seven hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 125 150 250 375 625 750 1250 1875 2953 3125 3750 5906 6250 8859 9375 14765 17718 18750 29530 44295 73825 88590 147650 221475 369125 442950 738250 1107375 1845625 2214750 3691250 5536875 9228125 11073750 18456250 27684375 55368750