55155425544564 has 24 divisors (see below), whose sum is σ = 128696324096928. Its totient is φ = 18385094539680.

The previous prime is 55155425544509. The next prime is 55155425544787. The reversal of 55155425544564 is 46544552455155.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 55155425544498 and 55155425544507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 884727 + ... + 10540094.

It is an arithmetic number, because the mean of its divisors is an integer number (5362346837372).

Almost surely, 2^{55155425544564} is an apocalyptic number.

It is an amenable number.

55155425544564 is an abundant number, since it is smaller than the sum of its proper divisors (73540898552364).

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

55155425544564 is a wasteful number, since it uses less digits than its factorization.

55155425544564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11827135 (or 11827133 counting only the distinct ones).

The product of its digits is 240000000, while the sum is 60.

The spelling of 55155425544564 in words is "fifty-five trillion, one hundred fifty-five billion, four hundred twenty-five million, five hundred forty-four thousand, five hundred sixty-four".