55231713732015 has 48 divisors (see below), whose sum is σ = 100801989756000. Its totient is φ = 27898703030016.

The previous prime is 55231713732007. The next prime is 55231713732037. The reversal of 55231713732015 is 51023731713255.

55231713732015 is a `hidden beast` number, since 5 + 5 + 2 + 3 + 1 + 71 + 373 + 201 + 5 = 666.

It is not a de Polignac number, because 55231713732015 - 2³ = 55231713732007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6039240 + ... + 12121709.

It is an arithmetic number, because the mean of its divisors is an integer number (2100041453250).

Almost surely, 2^{55231713732015} is an apocalyptic number.

55231713732015 is a deficient number, since it is larger than the sum of its proper divisors (45570276023985).

55231713732015 is a wasteful number, since it uses less digits than its factorization.

55231713732015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18164536 (or 18164533 counting only the distinct ones).

The product of its (nonzero) digits is 661500, while the sum is 45.

The spelling of 55231713732015 in words is "fifty-five trillion, two hundred thirty-one billion, seven hundred thirteen million, seven hundred thirty-two thousand, fifteen".