52553102521 has 4 divisors (see below), whose sum is σ = 54365278500. Its totient is φ = 50740926544.

The previous prime is 52553102513. The next prime is 52553102587. The reversal of 52553102521 is 12520135525.

52553102521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30567626896 + 21985475625 = 174836^2 + 148275^2 .

It is a cyclic number.

It is not a de Polignac number, because 52553102521 - 2³ = 52553102513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52553102621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 906087946 + ... + 906088003.

It is an arithmetic number, because the mean of its divisors is an integer number (13591319625).

Almost surely, 2^52553102521 is an apocalyptic number.

It is an amenable number.

52553102521 is a deficient number, since it is larger than the sum of its proper divisors (1812175979).

52553102521 is a wasteful number, since it uses less digits than its factorization.

52553102521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812175978.

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 52553102521 in words is "fifty-two billion, five hundred fifty-three million, one hundred two thousand, five hundred twenty-one".