252175631 has 4 divisors (see below), whose sum is σ = 252207672. Its totient is φ = 252143592.

The previous prime is 252175597. The next prime is 252175639. The reversal of 252175631 is 136571252.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252175631 is a prime.

It is a super-2 number, since 2×252175631² = 127185097740496322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252175639) 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, 4841 + ... + 22973.

It is an arithmetic number, because the mean of its divisors is an integer number (63051918).

Almost surely, 2^252175631 is an apocalyptic number.

252175631 is a deficient number, since it is larger than the sum of its proper divisors (32041).

252175631 is a wasteful number, since it uses less digits than its factorization.

252175631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32040.

The product of its digits is 12600, while the sum is 32.

The square root of 252175631 is about 15880.0387593985. The cubic root of 252175631 is about 631.7826649155.

The spelling of 252175631 in words is "two hundred fifty-two million, one hundred seventy-five thousand, six hundred thirty-one".