25055805579 has 24 divisors (see below), whose sum is σ = 39765844800. Its totient is φ = 13984632144.

The previous prime is 25055805559. The next prime is 25055805587. The reversal of 25055805579 is 97550855052.

It is not a de Polignac number, because 25055805579 - 2⁷ = 25055805451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25055805559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1975629 + ... + 1988270.

It is an arithmetic number, because the mean of its divisors is an integer number (1656910200).

Almost surely, 2^25055805579 is an apocalyptic number.

25055805579 is a deficient number, since it is larger than the sum of its proper divisors (14710039221).

25055805579 is a wasteful number, since it uses less digits than its factorization.

25055805579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3963959 (or 3963952 counting only the distinct ones).

The product of its (nonzero) digits is 3150000, while the sum is 51.

The spelling of 25055805579 in words is "twenty-five billion, fifty-five million, eight hundred five thousand, five hundred seventy-nine".