55931503764 has 48 divisors (see below), whose sum is σ = 138424366080. Its totient is φ = 17527741920.

The previous prime is 55931503763. The next prime is 55931503781. The reversal of 55931503764 is 46730513955.

It is a super-2 number, since 2×55931503764² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55931503763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 906444 + ... + 966179.

It is an arithmetic number, because the mean of its divisors is an integer number (2883840960).

Almost surely, 2^55931503764 is an apocalyptic number.

It is an amenable number.

55931503764 is an abundant number, since it is smaller than the sum of its proper divisors (82492862316).

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

55931503764 is a wasteful number, since it uses less digits than its factorization.

55931503764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872780 (or 1872778 counting only the distinct ones).

The product of its (nonzero) digits is 1701000, while the sum is 48.

The spelling of 55931503764 in words is "fifty-five billion, nine hundred thirty-one million, five hundred three thousand, seven hundred sixty-four".