55331560233540 has 72 divisors (see below), whose sum is σ = 167853602611968. Its totient is φ = 14753804788800.

The previous prime is 55331560233529. The next prime is 55331560233619. The reversal of 55331560233540 is 4533206513355.

It is a happy number.

55331560233540 is a `hidden beast` number, since 5 + 5 + 3 + 3 + 1 + 5 + 602 + 3 + 35 + 4 + 0 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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

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, 11226922 + ... + 15385281.

Almost surely, 2^{55331560233540} is an apocalyptic number.

It is an amenable number.

55331560233540 is an abundant number, since it is smaller than the sum of its proper divisors (112522042378428).

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

55331560233540 is a wasteful number, since it uses less digits than its factorization.

55331560233540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26623769 (or 26623764 counting only the distinct ones).

The product of its (nonzero) digits is 2430000, while the sum is 45.

Adding to 55331560233540 its reverse (4533206513355), we get a palindrome (59864766746895).

The spelling of 55331560233540 in words is "fifty-five trillion, three hundred thirty-one billion, five hundred sixty million, two hundred thirty-three thousand, five hundred forty".