25573476968 has 64 divisors (see below), whose sum is σ = 54657657600. Its totient is φ = 11119991040.

The previous prime is 25573476959. The next prime is 25573476979. The reversal of 25573476968 is 86967437552.

It is a self number, because there is not a number n which added to its sum of digits gives 25573476968.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321905 + ... + 393407.

It is an arithmetic number, because the mean of its divisors is an integer number (854025900).

Almost surely, 2^25573476968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25573476968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27328828800).

25573476968 is an abundant number, since it is smaller than the sum of its proper divisors (29084180632).

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

25573476968 is a wasteful number, since it uses less digits than its factorization.

25573476968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71722 (or 71718 counting only the distinct ones).

The product of its digits is 76204800, while the sum is 62.

The spelling of 25573476968 in words is "twenty-five billion, five hundred seventy-three million, four hundred seventy-six thousand, nine hundred sixty-eight".