55765387332 has 30 divisors (see below), whose sum is σ = 145781738718. Its totient is φ = 18588462336.

The previous prime is 55765387331. The next prime is 55765387367. The reversal of 55765387332 is 23378356755.

55765387332 is a `hidden beast` number, since 5 + 5 + 7 + 6 + 538 + 73 + 32 = 666.

It can be written as a sum of positive squares in only one way, i.e., 54688628736 + 1076758596 = 233856^2 + 32814^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (55765387331) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 86057373 + ... + 86058020.

Almost surely, 2^55765387332 is an apocalyptic number.

It is an amenable number.

55765387332 is an abundant number, since it is smaller than the sum of its proper divisors (90016351386).

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

55765387332 is a wasteful number, since it uses less digits than its factorization.

55765387332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172115409 (or 172115398 counting only the distinct ones).

The product of its digits is 15876000, while the sum is 54.

The spelling of 55765387332 in words is "fifty-five billion, seven hundred sixty-five million, three hundred eighty-seven thousand, three hundred thirty-two".