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55506245 = 523482663
BaseRepresentation
bin1101001110111…
…1010101000101
310212110000020212
43103233111011
5103202144440
65301405205
71242536534
oct323572505
9125400225
1055506245
1129371733
1216709805
13b665742
14752c31b
154d16465
hex34ef545

55506245 has 8 divisors (see below), whose sum is σ = 69503616. Its totient is φ = 42474256.

The previous prime is 55506229. The next prime is 55506247. The reversal of 55506245 is 54260555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55506245 - 24 = 55506229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55506247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241217 + ... + 241446.

It is an arithmetic number, because the mean of its divisors is an integer number (8687952).

Almost surely, 255506245 is an apocalyptic number.

It is an amenable number.

55506245 is a deficient number, since it is larger than the sum of its proper divisors (13997371).

55506245 is a wasteful number, since it uses less digits than its factorization.

55506245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482691.

The product of its (nonzero) digits is 30000, while the sum is 32.

The square root of 55506245 is about 7450.2513380422. The cubic root of 55506245 is about 381.4584877766.

The spelling of 55506245 in words is "fifty-five million, five hundred six thousand, two hundred forty-five".

Divisors: 1 5 23 115 482663 2413315 11101249 55506245