25636460 has 12 divisors (see below), whose sum is σ = 53836608. Its totient is φ = 10254576.

The previous prime is 25636447. The next prime is 25636463. The reversal of 25636460 is 6463652.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (25636463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640892 + ... + 640931.

It is an arithmetic number, because the mean of its divisors is an integer number (4486384).

Almost surely, 2^25636460 is an apocalyptic number.

25636460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25636460 is an abundant number, since it is smaller than the sum of its proper divisors (28200148).

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

25636460 is a wasteful number, since it uses less digits than its factorization.

25636460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281832 (or 1281830 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 25636460 is about 5063.2459944190. The cubic root of 25636460 is about 294.8623699662.

The spelling of 25636460 in words is "twenty-five million, six hundred thirty-six thousand, four hundred sixty".