25528004 has 36 divisors (see below), whose sum is σ = 47961900. Its totient is φ = 11874240.

The previous prime is 25527977. The next prime is 25528031. The reversal of 25528004 is 40082552.

It is an interprime number because it is at equal distance from previous prime (25527977) and next prime (25528031).

It can be written as a sum of positive squares in 2 ways, for example, as 19377604 + 6150400 = 4402^2 + 2480^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111362 + ... + 111590.

It is an arithmetic number, because the mean of its divisors is an integer number (1332275).

Almost surely, 2^25528004 is an apocalyptic number.

It is an amenable number.

25528004 is a deficient number, since it is larger than the sum of its proper divisors (22433896).

25528004 is a wasteful number, since it uses less digits than its factorization.

25528004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 25528004 is about 5052.5245175061. The cubic root of 25528004 is about 294.4459734688.

The spelling of 25528004 in words is "twenty-five million, five hundred twenty-eight thousand, four".