252587581667 has 4 divisors (see below), whose sum is σ = 254904899040. Its totient is φ = 250270264296.

The previous prime is 252587581627. The next prime is 252587581679. The reversal of 252587581667 is 766185785252.

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

It is a cyclic number.

It is not a de Polignac number, because 252587581667 - 2³² = 248292614371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252587581627) 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, 1158658523 + ... + 1158658740.

It is an arithmetic number, because the mean of its divisors is an integer number (63726224760).

Almost surely, 2^252587581667 is an apocalyptic number.

252587581667 is a deficient number, since it is larger than the sum of its proper divisors (2317317373).

252587581667 is a wasteful number, since it uses less digits than its factorization.

252587581667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2317317372.

The product of its digits is 56448000, while the sum is 62.

The spelling of 252587581667 in words is "two hundred fifty-two billion, five hundred eighty-seven million, five hundred eighty-one thousand, six hundred sixty-seven".