52525252521 has 64 divisors (see below), whose sum is σ = 90858432000. Its totient is φ = 29977444224.

The previous prime is 52525252471. The next prime is 52525252523. The reversal of 52525252521 is 12525252525.

It is not a de Polignac number, because 52525252521 - 2²⁷ = 52391034793 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (52525252523) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8674531 + ... + 8680583.

It is an arithmetic number, because the mean of its divisors is an integer number (1419663000).

Almost surely, 2^52525252521 is an apocalyptic number.

It is an amenable number.

52525252521 is a deficient number, since it is larger than the sum of its proper divisors (38333179479).

52525252521 is an equidigital number, since it uses as much as digits as its factorization.

52525252521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7020 (or 7000 counting only the distinct ones).

The product of its digits is 100000, while the sum is 36.

The spelling of 52525252521 in words is "fifty-two billion, five hundred twenty-five million, two hundred fifty-two thousand, five hundred twenty-one".