25630643115 has 96 divisors (see below), whose sum is σ = 55466611200. Its totient is φ = 10636738560.

The previous prime is 25630643063. The next prime is 25630643119. The reversal of 25630643115 is 51134603652.

25630643115 is a `hidden beast` number, since 2 + 5 + 6 + 3 + 0 + 643 + 1 + 1 + 5 = 666.

It is not a de Polignac number, because 25630643115 - 2¹⁰ = 25630642091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25630643115.

It is not an unprimeable number, because it can be changed into a prime (25630643119) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2659776 + ... + 2669394.

It is an arithmetic number, because the mean of its divisors is an integer number (577777200).

Almost surely, 2^25630643115 is an apocalyptic number.

25630643115 is an abundant number, since it is smaller than the sum of its proper divisors (29835968085).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25630643115 is a wasteful number, since it uses less digits than its factorization.

25630643115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10417 (or 10414 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 25630643115 in words is "twenty-five billion, six hundred thirty million, six hundred forty-three thousand, one hundred fifteen".