25055554572 has 18 divisors (see below), whose sum is σ = 63334874148. Its totient is φ = 8351851512.

The previous prime is 25055554519. The next prime is 25055554609. The reversal of 25055554572 is 27545555052.

25055554572 is a `hidden beast` number, since 2 + 50 + 5 + 55 + 545 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 347993778 + ... + 347993849.

Almost surely, 2^25055554572 is an apocalyptic number.

It is an amenable number.

25055554572 is an abundant number, since it is smaller than the sum of its proper divisors (38279319576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25055554572 is a wasteful number, since it uses less digits than its factorization.

25055554572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695987637 (or 695987632 counting only the distinct ones).

The product of its (nonzero) digits is 1750000, while the sum is 45.

The spelling of 25055554572 in words is "twenty-five billion, fifty-five million, five hundred fifty-four thousand, five hundred seventy-two".