2556325365 has 16 divisors (see below), whose sum is σ = 4461950016. Its totient is φ = 1239430400.

The previous prime is 2556325349. The next prime is 2556325399. The reversal of 2556325365 is 5635236552.

It is not a de Polignac number, because 2556325365 - 2⁴ = 2556325349 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7746276 + ... + 7746605.

It is an arithmetic number, because the mean of its divisors is an integer number (278871876).

Almost surely, 2^2556325365 is an apocalyptic number.

It is an amenable number.

2556325365 is a deficient number, since it is larger than the sum of its proper divisors (1905624651).

2556325365 is a wasteful number, since it uses less digits than its factorization.

2556325365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15492900.

The product of its digits is 810000, while the sum is 42.

The square root of 2556325365 is about 50560.1163467807. The cubic root of 2556325365 is about 1367.3259087648.

The spelling of 2556325365 in words is "two billion, five hundred fifty-six million, three hundred twenty-five thousand, three hundred sixty-five".