252233531 has 16 divisors (see below), whose sum is σ = 291528960. Its totient is φ = 215822880.

The previous prime is 252233497. The next prime is 252233533. The reversal of 252233531 is 135332252.

It is a cyclic number.

It is not a de Polignac number, because 252233531 - 2¹⁸ = 251971387 is a prime.

It is a super-2 number, since 2×252233531² = 127243508321455922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252233531.

It is not an unprimeable number, because it can be changed into a prime (252233533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28970 + ... + 36656.

It is an arithmetic number, because the mean of its divisors is an integer number (18220560).

Almost surely, 2^252233531 is an apocalyptic number.

252233531 is a deficient number, since it is larger than the sum of its proper divisors (39295429).

252233531 is a wasteful number, since it uses less digits than its factorization.

252233531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7874.

The product of its digits is 5400, while the sum is 26.

The square root of 252233531 is about 15881.8616981763. The cubic root of 252233531 is about 631.8310140454.

Adding to 252233531 its reverse (135332252), we get a palindrome (387565783).

The spelling of 252233531 in words is "two hundred fifty-two million, two hundred thirty-three thousand, five hundred thirty-one".