25506069116 has 24 divisors (see below), whose sum is σ = 48704495616. Its totient is φ = 11591027120.

The previous prime is 25506069097. The next prime is 25506069131. The reversal of 25506069116 is 61196060552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136325 + ... + 263811.

It is an arithmetic number, because the mean of its divisors is an integer number (2029353984).

Almost surely, 2^25506069116 is an apocalyptic number.

It is an amenable number.

25506069116 is a deficient number, since it is larger than the sum of its proper divisors (23198426500).

25506069116 is a wasteful number, since it uses less digits than its factorization.

25506069116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132049 (or 132047 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 41.

The spelling of 25506069116 in words is "twenty-five billion, five hundred six million, sixty-nine thousand, one hundred sixteen".