52098256521 has 24 divisors (see below), whose sum is σ = 77082430464. Its totient is φ = 33892225920.

The previous prime is 52098256513. The next prime is 52098256549. The reversal of 52098256521 is 12565289025.

52098256521 is a `hidden beast` number, since 5 + 2 + 0 + 9 + 82 + 565 + 2 + 1 = 666.

It is not a de Polignac number, because 52098256521 - 2³ = 52098256513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52098256571) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40185 + ... + 325286.

It is an arithmetic number, because the mean of its divisors is an integer number (3211767936).

Almost surely, 2^52098256521 is an apocalyptic number.

It is an amenable number.

52098256521 is a deficient number, since it is larger than the sum of its proper divisors (24984173943).

52098256521 is a wasteful number, since it uses less digits than its factorization.

52098256521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365861 (or 365858 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 45.

The spelling of 52098256521 in words is "fifty-two billion, ninety-eight million, two hundred fifty-six thousand, five hundred twenty-one".