25555528004 has 12 divisors (see below), whose sum is σ = 44892222144. Its totient is φ = 12729178824.

The previous prime is 25555528003. The next prime is 25555528073. The reversal of 25555528004 is 40082555552.

It is not an unprimeable number, because it can be changed into a prime (25555528003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12145112 + ... + 12147215.

It is an arithmetic number, because the mean of its divisors is an integer number (3741018512).

Almost surely, 2^25555528004 is an apocalyptic number.

It is an amenable number.

25555528004 is a deficient number, since it is larger than the sum of its proper divisors (19336694140).

25555528004 is a wasteful number, since it uses less digits than its factorization.

25555528004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24292594 (or 24292592 counting only the distinct ones).

The product of its (nonzero) digits is 400000, while the sum is 41.

The spelling of 25555528004 in words is "twenty-five billion, five hundred fifty-five million, five hundred twenty-eight thousand, four".