12355625 has 20 divisors (see below), whose sum is σ = 15773076. Its totient is φ = 9672000.

The previous prime is 12355621. The next prime is 12355631. The reversal of 12355625 is 52655321.

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 7974976 + 4380649 = 2824^2 + 2093^2 .

It is not a de Polignac number, because 12355625 - 2² = 12355621 is a prime.

It is a super-2 number, since 2×12355625² = 305322938281250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12355621) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 32939 + ... + 33311.

Almost surely, 2^12355625 is an apocalyptic number.

It is an amenable number.

12355625 is a deficient number, since it is larger than the sum of its proper divisors (3417451).

12355625 is an frugal number, since it uses more digits than its factorization.

12355625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 431 counting only the distinct ones).

The product of its digits is 9000, while the sum is 29.

The square root of 12355625 is about 3515.0568985437. The cubic root of 12355625 is about 231.1824735879.

The spelling of 12355625 in words is "twelve million, three hundred fifty-five thousand, six hundred twenty-five".