55555551355752 has 160 divisors (see below), whose sum is σ = 180087650054400. Its totient is φ = 15672090335616.

The previous prime is 55555551355747. The next prime is 55555551355763. The reversal of 55555551355752 is 25755315555555.

It is a happy number.

55555551355752 is a `hidden beast` number, since 5 + 5 + 5 + 5 + 5 + 5 + 51 + 3 + 5 + 575 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 55555551355752.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 77158723 + ... + 77875410.

It is an arithmetic number, because the mean of its divisors is an integer number (1125547812840).

Almost surely, 2^{55555551355752} is an apocalyptic number.

It is an amenable number.

55555551355752 is an abundant number, since it is smaller than the sum of its proper divisors (124532098698648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55555551355752 is a wasteful number, since it uses less digits than its factorization.

55555551355752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155034237 (or 155034224 counting only the distinct ones).

The product of its digits is 410156250, while the sum is 63.

The spelling of 55555551355752 in words is "fifty-five trillion, five hundred fifty-five billion, five hundred fifty-one million, three hundred fifty-five thousand, seven hundred fifty-two".