252311532 has 24 divisors (see below), whose sum is σ = 642247872. Its totient is φ = 76458000.

The previous prime is 252311519. The next prime is 252311551. The reversal of 252311532 is 235113252.

It is a happy number.

It is a super-2 number, since 2×252311532² = 127322218360374048, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 955594 + ... + 955857.

It is an arithmetic number, because the mean of its divisors is an integer number (26760328).

Almost surely, 2^252311532 is an apocalyptic number.

252311532 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

252311532 is an abundant number, since it is smaller than the sum of its proper divisors (389936340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252311532 is a wasteful number, since it uses less digits than its factorization.

252311532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911469 (or 1911467 counting only the distinct ones).

The product of its digits is 1800, while the sum is 24.

The square root of 252311532 is about 15884.3171713486. The cubic root of 252311532 is about 631.8961367268.

Adding to 252311532 its reverse (235113252), we get a palindrome (487424784).

It can be divided in two parts, 2523 and 11532, that multiplied together give a square (29095236 = 5394²).

The spelling of 252311532 in words is "two hundred fifty-two million, three hundred eleven thousand, five hundred thirty-two".