52525051520 has 64 divisors (see below), whose sum is σ = 125595894600. Its totient is φ = 21005303808.

The previous prime is 52525051499. The next prime is 52525051529. The reversal of 52525051520 is 2515052525.

It can be written as a sum of positive squares in 4 ways, for example, as 25336998976 + 27188052544 = 159176^2 + 164888^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (52525051529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4818236 + ... + 4829124.

Almost surely, 2^52525051520 is an apocalyptic number.

It is an amenable number.

52525051520 is an abundant number, since it is smaller than the sum of its proper divisors (73070843080).

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

52525051520 is a wasteful number, since it uses less digits than its factorization.

52525051520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18445 (or 18433 counting only the distinct ones).

The product of its (nonzero) digits is 25000, while the sum is 32.

The spelling of 52525051520 in words is "fifty-two billion, five hundred twenty-five million, fifty-one thousand, five hundred twenty".