25427564 has 24 divisors (see below), whose sum is σ = 46921728. Its totient is φ = 12039120.

The previous prime is 25427551. The next prime is 25427593. The reversal of 25427564 is 46572452.

It is a super-2 number, since 2×25427564² = 1293122021948192, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3647 + ... + 8009.

It is an arithmetic number, because the mean of its divisors is an integer number (1955072).

Almost surely, 2^25427564 is an apocalyptic number.

It is an amenable number.

25427564 is a deficient number, since it is larger than the sum of its proper divisors (21494164).

25427564 is a wasteful number, since it uses less digits than its factorization.

25427564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4445 (or 4443 counting only the distinct ones).

The product of its digits is 67200, while the sum is 35.

The square root of 25427564 is about 5042.5751357813. The cubic root of 25427564 is about 294.0592997450.

The spelling of 25427564 in words is "twenty-five million, four hundred twenty-seven thousand, five hundred sixty-four".