253032431 has 8 divisors (see below), whose sum is σ = 255052800. Its totient is φ = 251019160.

The previous prime is 253032391. The next prime is 253032449. The reversal of 253032431 is 134230352.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253032431 is a prime.

It is a super-2 number, since 2×253032431² = 128050822275539522, 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 = 253032397 and 253032406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253032931) 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, 86450 + ... + 89328.

It is an arithmetic number, because the mean of its divisors is an integer number (31881600).

Almost surely, 2^253032431 is an apocalyptic number.

253032431 is a deficient number, since it is larger than the sum of its proper divisors (2020369).

253032431 is a wasteful number, since it uses less digits than its factorization.

253032431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3549.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 253032431 is about 15906.9931476694. The cubic root of 253032431 is about 632.4973777537.

Adding to 253032431 its reverse (134230352), we get a palindrome (387262783).

The spelling of 253032431 in words is "two hundred fifty-three million, thirty-two thousand, four hundred thirty-one".