15534532055 has 32 divisors (see below), whose sum is σ = 21715150464. Its totient is φ = 10448879616.

The previous prime is 15534532037. The next prime is 15534532063. The reversal of 15534532055 is 55023543551.

It is a de Polignac number, because none of the positive numbers 2^k-15534532055 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 363389 + ... + 403881.

It is an arithmetic number, because the mean of its divisors is an integer number (678598452).

Almost surely, 2^15534532055 is an apocalyptic number.

15534532055 is a deficient number, since it is larger than the sum of its proper divisors (6180618409).

15534532055 is a wasteful number, since it uses less digits than its factorization.

15534532055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40715.

The product of its (nonzero) digits is 225000, while the sum is 38.

The spelling of 15534532055 in words is "fifteen billion, five hundred thirty-four million, five hundred thirty-two thousand, fifty-five".