55772045004 has 24 divisors (see below), whose sum is σ = 140145139120. Its totient is φ = 17160629184.

The previous prime is 55772044973. The next prime is 55772045009. The reversal of 55772045004 is 40054027755.

It is a super-2 number, since 2×55772045004² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (55772045009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178756399 + ... + 178756710.

Almost surely, 2^55772045004 is an apocalyptic number.

It is an amenable number.

55772045004 is an abundant number, since it is smaller than the sum of its proper divisors (84373094116).

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

55772045004 is a wasteful number, since it uses less digits than its factorization.

55772045004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357513129 (or 357513127 counting only the distinct ones).

The product of its (nonzero) digits is 196000, while the sum is 39.

The spelling of 55772045004 in words is "fifty-five billion, seven hundred seventy-two million, forty-five thousand, four".