25525030028 has 12 divisors (see below), whose sum is σ = 45758285832. Its totient is φ = 12451234080.

The previous prime is 25525030009. The next prime is 25525030033. The reversal of 25525030028 is 82003052552.

It is a junction number, because it is equal to n+sod(n) for n = 25525029976 and 25525030003.

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, 77820050 + ... + 77820377.

It is an arithmetic number, because the mean of its divisors is an integer number (3813190486).

Almost surely, 2^25525030028 is an apocalyptic number.

It is an amenable number.

25525030028 is a deficient number, since it is larger than the sum of its proper divisors (20233255804).

25525030028 is a wasteful number, since it uses less digits than its factorization.

25525030028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155640472 (or 155640470 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 25525030028 in words is "twenty-five billion, five hundred twenty-five million, thirty thousand, twenty-eight".