25254566628 has 48 divisors (see below), whose sum is σ = 61537660800. Its totient is φ = 8045858304.

The previous prime is 25254566627. The next prime is 25254566633. The reversal of 25254566628 is 82666545252.

It is not an unprimeable number, because it can be changed into a prime (25254566627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322698 + ... + 393246.

It is an arithmetic number, because the mean of its divisors is an integer number (1282034600).

Almost surely, 2^25254566628 is an apocalyptic number.

It is an amenable number.

25254566628 is an abundant number, since it is smaller than the sum of its proper divisors (36283094172).

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

25254566628 is a wasteful number, since it uses less digits than its factorization.

25254566628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71876 (or 71874 counting only the distinct ones).

The product of its digits is 6912000, while the sum is 51.

The spelling of 25254566628 in words is "twenty-five billion, two hundred fifty-four million, five hundred sixty-six thousand, six hundred twenty-eight".