25672944650 has 24 divisors (see below), whose sum is σ = 47756110080. Its totient is φ = 10268224560.

The previous prime is 25672944631. The next prime is 25672944667. The reversal of 25672944650 is 5644927652.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 806741 + ... + 837959.

It is an arithmetic number, because the mean of its divisors is an integer number (1989837920).

Almost surely, 2^25672944650 is an apocalyptic number.

25672944650 is a deficient number, since it is larger than the sum of its proper divisors (22083165430).

25672944650 is a wasteful number, since it uses less digits than its factorization.

25672944650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47678 (or 47673 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 50.

The spelling of 25672944650 in words is "twenty-five billion, six hundred seventy-two million, nine hundred forty-four thousand, six hundred fifty".