52215244657 has 8 divisors (see below), whose sum is σ = 52368987776. Its totient is φ = 52061564592.

The previous prime is 52215244619. The next prime is 52215244681. The reversal of 52215244657 is 75644251225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52215244657 - 2³⁵ = 17855506289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52215244157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2026618 + ... + 2052220.

It is an arithmetic number, because the mean of its divisors is an integer number (6546123472).

Almost surely, 2^52215244657 is an apocalyptic number.

It is an amenable number.

52215244657 is a deficient number, since it is larger than the sum of its proper divisors (153743119).

52215244657 is a wasteful number, since it uses less digits than its factorization.

52215244657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31527.

The product of its digits is 672000, while the sum is 43.

The spelling of 52215244657 in words is "fifty-two billion, two hundred fifteen million, two hundred forty-four thousand, six hundred fifty-seven".