253432231 has 12 divisors (see below), whose sum is σ = 274877712. Its totient is φ = 233553216.

The previous prime is 253432177. The next prime is 253432259. The reversal of 253432231 is 132234352.

It is not a de Polignac number, because 253432231 - 2⁷ = 253432103 is a prime.

It is a super-2 number, since 2×253432231² = 128455791419274722, 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 = 253432196 and 253432205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253438231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184710 + ... + 186076.

It is an arithmetic number, because the mean of its divisors is an integer number (22906476).

Almost surely, 2^253432231 is an apocalyptic number.

253432231 is a deficient number, since it is larger than the sum of its proper divisors (21445481).

253432231 is a wasteful number, since it uses less digits than its factorization.

253432231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2490 (or 2477 counting only the distinct ones).

The product of its digits is 4320, while the sum is 25.

The square root of 253432231 is about 15919.5549874989. The cubic root of 253432231 is about 632.8303250430.

Adding to 253432231 its reverse (132234352), we get a palindrome (385666583).

The spelling of 253432231 in words is "two hundred fifty-three million, four hundred thirty-two thousand, two hundred thirty-one".