253763431 has 2 divisors, whose sum is σ = 253763432. Its totient is φ = 253763430.

The previous prime is 253763429. The next prime is 253763479. The reversal of 253763431 is 134367352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253763431 - 2¹ = 253763429 is a prime.

It is a super-2 number, since 2×253763431² = 128791757825783522, which contains 22 as substring.

Together with 253763429, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253763401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126881715 + 126881716.

It is an arithmetic number, because the mean of its divisors is an integer number (126881716).

Almost surely, 2^253763431 is an apocalyptic number.

253763431 is a deficient number, since it is larger than the sum of its proper divisors (1).

253763431 is an equidigital number, since it uses as much as digits as its factorization.

253763431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 34.

The square root of 253763431 is about 15929.9538919609. The cubic root of 253763431 is about 633.1058782170.

The spelling of 253763431 in words is "two hundred fifty-three million, seven hundred sixty-three thousand, four hundred thirty-one".