252361663601 has 4 divisors (see below), whose sum is σ = 252456432192. Its totient is φ = 252266895012.

The previous prime is 252361663591. The next prime is 252361663613. The reversal of 252361663601 is 106366163252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 252361663601 - 2²² = 252357469297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252361662601) 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, 47380301 + ... + 47385626.

It is an arithmetic number, because the mean of its divisors is an integer number (63114108048).

Almost surely, 2^252361663601 is an apocalyptic number.

It is an amenable number.

252361663601 is a deficient number, since it is larger than the sum of its proper divisors (94768591).

252361663601 is an equidigital number, since it uses as much as digits as its factorization.

252361663601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94768590.

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 252361663601 in words is "two hundred fifty-two billion, three hundred sixty-one million, six hundred sixty-three thousand, six hundred one".