25645713356 has 48 divisors (see below), whose sum is σ = 47928314112. Its totient is φ = 11985408000.

The previous prime is 25645713329. The next prime is 25645713371. The reversal of 25645713356 is 65331754652.

It is a super-2 number, since 2×25645713356² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25645713356.

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, 608156 + ... + 648956.

It is an arithmetic number, because the mean of its divisors is an integer number (998506544).

Almost surely, 2^25645713356 is an apocalyptic number.

It is an amenable number.

25645713356 is a deficient number, since it is larger than the sum of its proper divisors (22282600756).

25645713356 is a wasteful number, since it uses less digits than its factorization.

25645713356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41010 (or 41008 counting only the distinct ones).

The product of its digits is 2268000, while the sum is 47.

The spelling of 25645713356 in words is "twenty-five billion, six hundred forty-five million, seven hundred thirteen thousand, three hundred fifty-six".