252511331 has 4 divisors (see below), whose sum is σ = 252762600. Its totient is φ = 252260064.

The previous prime is 252511291. The next prime is 252511361. The reversal of 252511331 is 133115252.

It is a happy number.

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 252511331 - 2⁶ = 252511267 is a prime.

It is a super-2 number, since 2×252511331² = 127523944566783122, 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 = 252511297 and 252511306.

It is not an unprimeable number, because it can be changed into a prime (252511361) 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, 124121 + ... + 126138.

It is an arithmetic number, because the mean of its divisors is an integer number (63190650).

Almost surely, 2^252511331 is an apocalyptic number.

252511331 is a deficient number, since it is larger than the sum of its proper divisors (251269).

252511331 is a wasteful number, since it uses less digits than its factorization.

252511331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251268.

The product of its digits is 900, while the sum is 23.

The square root of 252511331 is about 15890.6051174900. The cubic root of 252511331 is about 632.0628868083.

Adding to 252511331 its reverse (133115252), we get a palindrome (385626583).

The spelling of 252511331 in words is "two hundred fifty-two million, five hundred eleven thousand, three hundred thirty-one".