253316399 has 8 divisors (see below), whose sum is σ = 290271360. Its totient is φ = 216553176.

The previous prime is 253316389. The next prime is 253316431. The reversal of 253316399 is 993613352.

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

It is not a de Polignac number, because 253316399 - 2¹⁶ = 253250863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253316369) 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, 45089 + ... + 50394.

It is an arithmetic number, because the mean of its divisors is an integer number (36283920).

Almost surely, 2^253316399 is an apocalyptic number.

253316399 is a deficient number, since it is larger than the sum of its proper divisors (36954961).

253316399 is an equidigital number, since it uses as much as digits as its factorization.

253316399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95869.

The product of its digits is 131220, while the sum is 41.

The square root of 253316399 is about 15915.9165303164. The cubic root of 253316399 is about 632.7338979858.

The spelling of 253316399 in words is "two hundred fifty-three million, three hundred sixteen thousand, three hundred ninety-nine".