252214431 has 32 divisors (see below), whose sum is σ = 410116608. Its totient is φ = 134584320.

The previous prime is 252214427. The next prime is 252214433. The reversal of 252214431 is 134412252.

It is not a de Polignac number, because 252214431 - 2² = 252214427 is a prime.

It is a super-2 number, since 2×252214431² = 127224238409307522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252214433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44071 + ... + 49463.

It is an arithmetic number, because the mean of its divisors is an integer number (12816144).

Almost surely, 2^252214431 is an apocalyptic number.

252214431 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

252214431 is a deficient number, since it is larger than the sum of its proper divisors (157902177).

252214431 is a wasteful number, since it uses less digits than its factorization.

252214431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5551.

The product of its digits is 1920, while the sum is 24.

The square root of 252214431 is about 15881.2603718974. The cubic root of 252214431 is about 631.8150654957.

Adding to 252214431 its reverse (134412252), we get a palindrome (386626683).

The spelling of 252214431 in words is "two hundred fifty-two million, two hundred fourteen thousand, four hundred thirty-one".