252320642559 has 12 divisors (see below), whose sum is σ = 364610559456. Its totient is φ = 168145726752.

The previous prime is 252320642531. The next prime is 252320642569. The reversal of 252320642559 is 955246023252.

252320642559 is a `hidden beast` number, since 2 + 5 + 2 + 32 + 0 + 64 + 2 + 559 = 666.

It is not a de Polignac number, because 252320642559 - 2¹² = 252320638463 is a prime.

It is a super-2 number, since 2×252320642559² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252320642569) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5646087 + ... + 5690600.

It is an arithmetic number, because the mean of its divisors is an integer number (30384213288).

Almost surely, 2^252320642559 is an apocalyptic number.

252320642559 is a deficient number, since it is larger than the sum of its proper divisors (112289916897).

252320642559 is a wasteful number, since it uses less digits than its factorization.

252320642559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11339166 (or 11339163 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 45.

The spelling of 252320642559 in words is "two hundred fifty-two billion, three hundred twenty million, six hundred forty-two thousand, five hundred fifty-nine".