55815313852 has 24 divisors (see below), whose sum is σ = 106217700624. Its totient is φ = 25556136192.

The previous prime is 55815313847. The next prime is 55815313859. The reversal of 55815313852 is 25831351855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55815313859) 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, 11089558 + ... + 11094589.

It is an arithmetic number, because the mean of its divisors is an integer number (4425737526).

Almost surely, 2^55815313852 is an apocalyptic number.

It is an amenable number.

55815313852 is a deficient number, since it is larger than the sum of its proper divisors (50402386772).

55815313852 is a wasteful number, since it uses less digits than its factorization.

55815313852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22184205 (or 22184203 counting only the distinct ones).

The product of its digits is 720000, while the sum is 46.

The spelling of 55815313852 in words is "fifty-five billion, eight hundred fifteen million, three hundred thirteen thousand, eight hundred fifty-two".