15388928055 has 12 divisors (see below), whose sum is σ = 26674142040. Its totient is φ = 8207428272.

The previous prime is 15388928033. The next prime is 15388928057. The reversal of 15388928055 is 55082988351.

It is a happy number.

15388928055 is a `hidden beast` number, since 1 + 538 + 89 + 28 + 0 + 5 + 5 = 666.

It is not a de Polignac number, because 15388928055 - 2¹³ = 15388919863 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15388927992 and 15388928010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15388928057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170988045 + ... + 170988134.

It is an arithmetic number, because the mean of its divisors is an integer number (2222845170).

Almost surely, 2^15388928055 is an apocalyptic number.

15388928055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15388928055 is a deficient number, since it is larger than the sum of its proper divisors (11285213985).

15388928055 is a wasteful number, since it uses less digits than its factorization.

15388928055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341976190 (or 341976187 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 54.

The spelling of 15388928055 in words is "fifteen billion, three hundred eighty-eight million, nine hundred twenty-eight thousand, fifty-five".