25561496 has 16 divisors (see below), whose sum is σ = 48114000. Its totient is φ = 12731104.

The previous prime is 25561493. The next prime is 25561507. The reversal of 25561496 is 69416552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25561493) 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, 3971 + ... + 8178.

It is an arithmetic number, because the mean of its divisors is an integer number (3007125).

Almost surely, 2^25561496 is an apocalyptic number.

It is an amenable number.

25561496 is a deficient number, since it is larger than the sum of its proper divisors (22552504).

25561496 is a wasteful number, since it uses less digits than its factorization.

25561496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12418 (or 12414 counting only the distinct ones).

The product of its digits is 64800, while the sum is 38.

The square root of 25561496 is about 5055.8378138544. The cubic root of 25561496 is about 294.5746853856.

The spelling of 25561496 in words is "twenty-five million, five hundred sixty-one thousand, four hundred ninety-six".