11431625 has 8 divisors (see below), whose sum is σ = 14266824. Its totient is φ = 9145200.

The previous prime is 11431619. The next prime is 11431627. The reversal of 11431625 is 52613411.

It can be written as a sum of positive squares in 4 ways, for example, as 1056784 + 10374841 = 1028^2 + 3221^2 .

It is not a de Polignac number, because 11431625 - 2⁶ = 11431561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11431625.

It is not an unprimeable number, because it can be changed into a prime (11431627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45602 + ... + 45851.

It is an arithmetic number, because the mean of its divisors is an integer number (1783353).

Almost surely, 2^11431625 is an apocalyptic number.

It is an amenable number.

11431625 is a deficient number, since it is larger than the sum of its proper divisors (2835199).

11431625 is an frugal number, since it uses more digits than its factorization.

11431625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91468 (or 91458 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 11431625 is about 3381.0686180555. The cubic root of 11431625 is about 225.2696355926.

The spelling of 11431625 in words is "eleven million, four hundred thirty-one thousand, six hundred twenty-five".