52257655128 has 64 divisors (see below), whose sum is σ = 149370370560. Its totient is φ = 14924480256.

The previous prime is 52257655127. The next prime is 52257655133. The reversal of 52257655128 is 82155675225.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52257655127) 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, 342876 + ... + 471252.

It is an arithmetic number, because the mean of its divisors is an integer number (2333912040).

Almost surely, 2^52257655128 is an apocalyptic number.

It is an amenable number.

52257655128 is an abundant number, since it is smaller than the sum of its proper divisors (97112715432).

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

52257655128 is a wasteful number, since it uses less digits than its factorization.

52257655128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130816 (or 130812 counting only the distinct ones).

The product of its digits is 1680000, while the sum is 48.

The spelling of 52257655128 in words is "fifty-two billion, two hundred fifty-seven million, six hundred fifty-five thousand, one hundred twenty-eight".