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55153023 = 359463673
BaseRepresentation
bin1101001001100…
…1000101111111
310211210001201120
43102121011333
5103104344043
65250042023
71236535662
oct322310577
9124701646
1055153023
1129150312
1216579313
13b570a33
1474796d9
154c96983
hex349917f

55153023 has 16 divisors (see below), whose sum is σ = 75056640. Its totient is φ = 36013824.

The previous prime is 55153009. The next prime is 55153027. The reversal of 55153023 is 32035155.

It is not a de Polignac number, because 55153023 - 29 = 55152511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55152984 and 55153002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55153027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81615 + ... + 82287.

It is an arithmetic number, because the mean of its divisors is an integer number (4691040).

Almost surely, 255153023 is an apocalyptic number.

55153023 is a deficient number, since it is larger than the sum of its proper divisors (19903617).

55153023 is a wasteful number, since it uses less digits than its factorization.

55153023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 55153023 is about 7426.5081296663. The cubic root of 55153023 is about 380.6476099123.

Adding to 55153023 its reverse (32035155), we get a palindrome (87188178).

The spelling of 55153023 in words is "fifty-five million, one hundred fifty-three thousand, twenty-three".

Divisors: 1 3 59 177 463 673 1389 2019 27317 39707 81951 119121 311599 934797 18384341 55153023