253251431 has 8 divisors (see below), whose sum is σ = 276799104. Its totient is φ = 230664960.

The previous prime is 253251409. The next prime is 253251433. The reversal of 253251431 is 134152352.

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 253251431 - 2¹⁸ = 252989287 is a prime.

It is a super-2 number, since 2×253251431² = 128272574607095522, 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 253251431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253251433) 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, 239750 + ... + 240803.

It is an arithmetic number, because the mean of its divisors is an integer number (34599888).

Almost surely, 2^253251431 is an apocalyptic number.

253251431 is a deficient number, since it is larger than the sum of its proper divisors (23547673).

253251431 is a wasteful number, since it uses less digits than its factorization.

253251431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480601.

The product of its digits is 3600, while the sum is 26.

The square root of 253251431 is about 15913.8754236672. The cubic root of 253251431 is about 632.6798009872.

The spelling of 253251431 in words is "two hundred fifty-three million, two hundred fifty-one thousand, four hundred thirty-one".