52515705720 has 64 divisors (see below), whose sum is σ = 166814601120. Its totient is φ = 13180411904.

The previous prime is 52515705679. The next prime is 52515705743. The reversal of 52515705720 is 2750751525.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 12869457 + ... + 12873536.

Almost surely, 2^52515705720 is an apocalyptic number.

It is an amenable number.

52515705720 is an abundant number, since it is smaller than the sum of its proper divisors (114298895400).

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

52515705720 is a wasteful number, since it uses less digits than its factorization.

52515705720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25743024 (or 25743020 counting only the distinct ones).

The product of its (nonzero) digits is 122500, while the sum is 39.

The spelling of 52515705720 in words is "fifty-two billion, five hundred fifteen million, seven hundred five thousand, seven hundred twenty".