25777551056 has 20 divisors (see below), whose sum is σ = 50689440192. Its totient is φ = 12696405216.

The previous prime is 25777551043. The next prime is 25777551071. The reversal of 25777551056 is 65015577752.

It is a junction number, because it is equal to n+sod(n) for n = 25777550995 and 25777551013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12022040 + ... + 12024183.

Almost surely, 2^25777551056 is an apocalyptic number.

It is an amenable number.

25777551056 is a deficient number, since it is larger than the sum of its proper divisors (24911889136).

25777551056 is a wasteful number, since it uses less digits than its factorization.

25777551056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24046298 (or 24046292 counting only the distinct ones).

The product of its (nonzero) digits is 2572500, while the sum is 50.

The spelling of 25777551056 in words is "twenty-five billion, seven hundred seventy-seven million, five hundred fifty-one thousand, fifty-six".