52513279520 has 48 divisors (see below), whose sum is σ = 133605906840. Its totient is φ = 19389517824.

The previous prime is 52513279519. The next prime is 52513279549. The reversal of 52513279520 is 2597231525.

It can be written as a sum of positive squares in 4 ways, for example, as 19663891984 + 32849387536 = 140228^2 + 181244^2 .

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, 12621305 + ... + 12625464.

Almost surely, 2^52513279520 is an apocalyptic number.

It is an amenable number.

52513279520 is an abundant number, since it is smaller than the sum of its proper divisors (81092627320).

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

52513279520 is a wasteful number, since it uses less digits than its factorization.

52513279520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25246797 (or 25246789 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 41.

The spelling of 52513279520 in words is "fifty-two billion, five hundred thirteen million, two hundred seventy-nine thousand, five hundred twenty".