25404628 has 12 divisors (see below), whose sum is σ = 45404352. Its totient is φ = 12431960.

The previous prime is 25404623. The next prime is 25404661. The reversal of 25404628 is 82640452.

It is a self number, because there is not a number n which added to its sum of digits gives 25404628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25404623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67378 + ... + 67753.

It is an arithmetic number, because the mean of its divisors is an integer number (3783696).

Almost surely, 2^25404628 is an apocalyptic number.

It is an amenable number.

25404628 is a deficient number, since it is larger than the sum of its proper divisors (19999724).

25404628 is a wasteful number, since it uses less digits than its factorization.

25404628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135182 (or 135180 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 25404628 is about 5040.3003878737. The cubic root of 25404628 is about 293.9708580182.

The spelling of 25404628 in words is "twenty-five million, four hundred four thousand, six hundred twenty-eight".