253233431 has 8 divisors (see below), whose sum is σ = 278937984. Its totient is φ = 227976120.

The previous prime is 253233413. The next prime is 253233433. The reversal of 253233431 is 134332352.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 253233431 - 2⁶ = 253233367 is a prime.

It is a super-2 number, since 2×253233431² = 128254341152063522, 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 253233431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253233433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110621 + ... + 112886.

It is an arithmetic number, because the mean of its divisors is an integer number (34867248).

Almost surely, 2^253233431 is an apocalyptic number.

253233431 is a deficient number, since it is larger than the sum of its proper divisors (25704553).

253233431 is a wasteful number, since it uses less digits than its factorization.

253233431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223621.

The product of its digits is 6480, while the sum is 26.

The square root of 253233431 is about 15913.3098694143. The cubic root of 253233431 is about 632.6648112644.

Adding to 253233431 its reverse (134332352), we get a palindrome (387565783).

The spelling of 253233431 in words is "two hundred fifty-three million, two hundred thirty-three thousand, four hundred thirty-one".