2563311394 has 32 divisors (see below), whose sum is σ = 4628736000. Its totient is φ = 1040020560.

The previous prime is 2563311347. The next prime is 2563311407. The reversal of 2563311394 is 4931133652.

It is a super-2 number, since 2×2563311394² = 13141130605220446472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 556039 + ... + 560629.

It is an arithmetic number, because the mean of its divisors is an integer number (144648000).

Almost surely, 2^2563311394 is an apocalyptic number.

2563311394 is a deficient number, since it is larger than the sum of its proper divisors (2065424606).

2563311394 is a wasteful number, since it uses less digits than its factorization.

2563311394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6718.

The product of its digits is 58320, while the sum is 37.

The square root of 2563311394 is about 50629.1555726540. The cubic root of 2563311394 is about 1368.5703369641.

The spelling of 2563311394 in words is "two billion, five hundred sixty-three million, three hundred eleven thousand, three hundred ninety-four".