25524354992 has 20 divisors (see below), whose sum is σ = 49709679240. Its totient is φ = 12696050688.

The previous prime is 25524354953. The next prime is 25524355007. The reversal of 25524354992 is 29945342552.

It is a self number, because there is not a number n which added to its sum of digits gives 25524354992.

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, 4129742 + ... + 4135917.

It is an arithmetic number, because the mean of its divisors is an integer number (2485483962).

Almost surely, 2^25524354992 is an apocalyptic number.

It is an amenable number.

25524354992 is a deficient number, since it is larger than the sum of its proper divisors (24185324248).

25524354992 is a wasteful number, since it uses less digits than its factorization.

25524354992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8265860 (or 8265854 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 50.

The spelling of 25524354992 in words is "twenty-five billion, five hundred twenty-four million, three hundred fifty-four thousand, nine hundred ninety-two".