12502977825 has 48 divisors (see below), whose sum is σ = 22285448640. Its totient is φ = 6148750080.

The previous prime is 12502977791. The next prime is 12502977829. The reversal of 12502977825 is 52877920521.

It is not a de Polignac number, because 12502977825 - 2⁶ = 12502977761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12502977829) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 981346 + ... + 994004.

It is an arithmetic number, because the mean of its divisors is an integer number (464280180).

Almost surely, 2^12502977825 is an apocalyptic number.

12502977825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12502977825 is a deficient number, since it is larger than the sum of its proper divisors (9782470815).

12502977825 is a wasteful number, since it uses less digits than its factorization.

12502977825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13698 (or 13693 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 48.

The spelling of 12502977825 in words is "twelve billion, five hundred two million, nine hundred seventy-seven thousand, eight hundred twenty-five".