12495564 has 18 divisors (see below), whose sum is σ = 31586100. Its totient is φ = 4165176.

The previous prime is 12495563. The next prime is 12495569. The reversal of 12495564 is 46559421.

12495564 is a `hidden beast` number, since 1 + 2 + 4 + 95 + 564 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×12495564² = 312278239356192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 347099 = 12495564 / (1 + 2 + 4 + 9 + 5 + 5 + 6 + 4).

It is not an unprimeable number, because it can be changed into a prime (12495563) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 173514 + ... + 173585.

Almost surely, 2^12495564 is an apocalyptic number.

It is an amenable number.

12495564 is an abundant number, since it is smaller than the sum of its proper divisors (19090536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12495564 is a wasteful number, since it uses less digits than its factorization.

12495564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347109 (or 347104 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 12495564 is about 3534.9065051285. The cubic root of 12495564 is about 232.0519849817.

The spelling of 12495564 in words is "twelve million, four hundred ninety-five thousand, five hundred sixty-four".