25642604 has 12 divisors (see below), whose sum is σ = 48326544. Its totient is φ = 11835024.

The previous prime is 25642597. The next prime is 25642607. The reversal of 25642604 is 40624652.

It is not an unprimeable number, because it can be changed into a prime (25642607) 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, 246512 + ... + 246615.

It is an arithmetic number, because the mean of its divisors is an integer number (4027212).

Almost surely, 2^25642604 is an apocalyptic number.

It is an amenable number.

25642604 is a deficient number, since it is larger than the sum of its proper divisors (22683940).

25642604 is a wasteful number, since it uses less digits than its factorization.

25642604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493144 (or 493142 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 25642604 is about 5063.8526834812. The cubic root of 25642604 is about 294.8859235261.

The spelling of 25642604 in words is "twenty-five million, six hundred forty-two thousand, six hundred four".