39455117055 has 24 divisors (see below), whose sum is σ = 70237220352. Its totient is φ = 20474005824.

The previous prime is 39455117011. The next prime is 39455117069. The reversal of 39455117055 is 55071155493.

39455117055 is a `hidden beast` number, since 3 + 94 + 551 + 1 + 7 + 0 + 5 + 5 = 666.

It is not a de Polignac number, because 39455117055 - 2¹⁰ = 39455116031 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 39455117055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11846719 + ... + 11850048.

It is an arithmetic number, because the mean of its divisors is an integer number (2926550848).

Almost surely, 2^39455117055 is an apocalyptic number.

39455117055 is a deficient number, since it is larger than the sum of its proper divisors (30782103297).

39455117055 is a wasteful number, since it uses less digits than its factorization.

39455117055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23696815 (or 23696812 counting only the distinct ones).

The product of its (nonzero) digits is 472500, while the sum is 45.

The spelling of 39455117055 in words is "thirty-nine billion, four hundred fifty-five million, one hundred seventeen thousand, fifty-five".