52400906520 has 64 divisors (see below), whose sum is σ = 158402787840. Its totient is φ = 13866902400.

The previous prime is 52400906491. The next prime is 52400906533. The reversal of 52400906520 is 2560900425.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1650976 + ... + 1682415.

It is an arithmetic number, because the mean of its divisors is an integer number (2475043560).

Almost surely, 2^52400906520 is an apocalyptic number.

It is an amenable number.

52400906520 is an abundant number, since it is smaller than the sum of its proper divisors (106001881320).

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

52400906520 is a wasteful number, since it uses less digits than its factorization.

52400906520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333536 (or 3333532 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 52400906520 in words is "fifty-two billion, four hundred million, nine hundred six thousand, five hundred twenty".