11565625 has 12 divisors (see below), whose sum is σ = 14460012. Its totient is φ = 9250000.

The previous prime is 11565613. The next prime is 11565629. The reversal of 11565625 is 52656511.

11565625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 9960336 + 1605289 = 3156^2 + 1267^2 .

It is not a de Polignac number, because 11565625 - 2²³ = 3177017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11565629) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1275 + ... + 4975.

It is an arithmetic number, because the mean of its divisors is an integer number (1205001).

Almost surely, 2^11565625 is an apocalyptic number.

It is an amenable number.

11565625 is a deficient number, since it is larger than the sum of its proper divisors (2894387).

11565625 is an frugal number, since it uses more digits than its factorization.

11565625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3726 (or 3706 counting only the distinct ones).

The product of its digits is 9000, while the sum is 31.

The square root of 11565625 is about 3400.8271052789. The cubic root of 11565625 is about 226.1464122933.

It can be divided in two parts, 1156 and 5625, that multiplied together give a square (6502500 = 2550²).

The spelling of 11565625 in words is "eleven million, five hundred sixty-five thousand, six hundred twenty-five".