12777625 has 32 divisors (see below), whose sum is σ = 19319040. Its totient is φ = 8236800.

The previous prime is 12777613. The next prime is 12777629. The reversal of 12777625 is 52677721.

12777625 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12777625 - 2⁷ = 12777497 is a prime.

12777625 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (12777629) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14446 + ... + 15304.

It is an arithmetic number, because the mean of its divisors is an integer number (603720).

Almost surely, 2^12777625 is an apocalyptic number.

It is an amenable number.

12777625 is a deficient number, since it is larger than the sum of its proper divisors (6541415).

12777625 is an equidigital number, since it uses as much as digits as its factorization.

12777625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898 (or 888 counting only the distinct ones).

The product of its digits is 41160, while the sum is 37.

The square root of 12777625 is about 3574.5803949555. The cubic root of 12777625 is about 233.7850376906.

The spelling of 12777625 in words is "twelve million, seven hundred seventy-seven thousand, six hundred twenty-five".