252500331 has 4 divisors (see below), whose sum is σ = 336667112. Its totient is φ = 168333552.

The previous prime is 252500323. The next prime is 252500333. The reversal of 252500331 is 133005252.

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

It is not a de Polignac number, because 252500331 - 2³ = 252500323 is a prime.

It is a super-2 number, since 2×252500331² = 127512834310219122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252500298 and 252500307.

It is not an unprimeable number, because it can be changed into a prime (252500333) 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, 42083386 + ... + 42083391.

It is an arithmetic number, because the mean of its divisors is an integer number (84166778).

Almost surely, 2^252500331 is an apocalyptic number.

252500331 is a deficient number, since it is larger than the sum of its proper divisors (84166781).

252500331 is an equidigital number, since it uses as much as digits as its factorization.

252500331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84166780.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 252500331 is about 15890.2589972599. The cubic root of 252500331 is about 632.0537086159.

Adding to 252500331 its reverse (133005252), we get a palindrome (385505583).

The spelling of 252500331 in words is "two hundred fifty-two million, five hundred thousand, three hundred thirty-one".