55308788355252 has 24 divisors (see below), whose sum is σ = 129055052901600. Its totient is φ = 18436089441376.

The previous prime is 55308788355211. The next prime is 55308788355329. The reversal of 55308788355252 is 25255388780355.

It is a happy number.

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, 20335227 + ... + 22894082.

It is an arithmetic number, because the mean of its divisors is an integer number (5377293870900).

Almost surely, 2^{55308788355252} is an apocalyptic number.

It is an amenable number.

55308788355252 is an abundant number, since it is smaller than the sum of its proper divisors (73746264546348).

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

55308788355252 is a wasteful number, since it uses less digits than its factorization.

55308788355252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43335935 (or 43335933 counting only the distinct ones).

The product of its (nonzero) digits is 403200000, while the sum is 66.

The spelling of 55308788355252 in words is "fifty-five trillion, three hundred eight billion, seven hundred eighty-eight million, three hundred fifty-five thousand, two hundred fifty-two".