25277513916 has 12 divisors (see below), whose sum is σ = 58980865832. Its totient is φ = 8425837968.

The previous prime is 25277513879. The next prime is 25277513929. The reversal of 25277513916 is 61931577252.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 1053229735 + ... + 1053229758.

Almost surely, 2^25277513916 is an apocalyptic number.

It is an amenable number.

25277513916 is an abundant number, since it is smaller than the sum of its proper divisors (33703351916).

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

25277513916 is a wasteful number, since it uses less digits than its factorization.

25277513916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2106459500 (or 2106459498 counting only the distinct ones).

The product of its digits is 793800, while the sum is 48.

The spelling of 25277513916 in words is "twenty-five billion, two hundred seventy-seven million, five hundred thirteen thousand, nine hundred sixteen".