25243564 has 12 divisors (see below), whose sum is σ = 44337664. Its totient is φ = 12575664.

The previous prime is 25243541. The next prime is 25243567. The reversal of 25243564 is 46534252.

It is not an unprimeable number, because it can be changed into a prime (25243567) 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, 10284 + ... + 12499.

Almost surely, 2^25243564 is an apocalyptic number.

It is an amenable number.

25243564 is a deficient number, since it is larger than the sum of its proper divisors (19094100).

25243564 is a wasteful number, since it uses less digits than its factorization.

25243564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23064 (or 23062 counting only the distinct ones).

The product of its digits is 28800, while the sum is 31.

The square root of 25243564 is about 5024.2973638112. The cubic root of 25243564 is about 293.3482872312.

The spelling of 25243564 in words is "twenty-five million, two hundred forty-three thousand, five hundred sixty-four".