12625531 has 4 divisors (see below), whose sum is σ = 12919192. Its totient is φ = 12331872.

The previous prime is 12625523. The next prime is 12625537. The reversal of 12625531 is 13552621.

12625531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12625531 - 2³ = 12625523 is a prime.

It is a super-2 number, since 2×12625531² = 318808066063922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12625496 and 12625505.

It is not an unprimeable number, because it can be changed into a prime (12625537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146766 + ... + 146851.

It is an arithmetic number, because the mean of its divisors is an integer number (3229798).

Almost surely, 2^12625531 is an apocalyptic number.

12625531 is a deficient number, since it is larger than the sum of its proper divisors (293661).

12625531 is an equidigital number, since it uses as much as digits as its factorization.

12625531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293660.

The product of its digits is 1800, while the sum is 25.

The square root of 12625531 is about 3553.2423221615. The cubic root of 12625531 is about 232.8537398620.

The spelling of 12625531 in words is "twelve million, six hundred twenty-five thousand, five hundred thirty-one".