313251553 has 4 divisors (see below), whose sum is σ = 314124480. Its totient is φ = 312378628.

The previous prime is 313251529. The next prime is 313251563. The reversal of 313251553 is 355152313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 313251553 - 2¹⁷ = 313120481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313251563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435925 + ... + 436642.

It is an arithmetic number, because the mean of its divisors is an integer number (78531120).

Almost surely, 2^313251553 is an apocalyptic number.

It is an amenable number.

313251553 is a deficient number, since it is larger than the sum of its proper divisors (872927).

313251553 is an equidigital number, since it uses as much as digits as its factorization.

313251553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872926.

The product of its digits is 6750, while the sum is 28.

The square root of 313251553 is about 17698.9138932308. The cubic root of 313251553 is about 679.1479762773.

The spelling of 313251553 in words is "three hundred thirteen million, two hundred fifty-one thousand, five hundred fifty-three".