25425604 has 6 divisors (see below), whose sum is σ = 44494814. Its totient is φ = 12712800.

The previous prime is 25425581. The next prime is 25425671. The reversal of 25425604 is 40652452.

It can be written as a sum of positive squares in only one way, i.e., 23328900 + 2096704 = 4830^2 + 1448^2 .

It is a super-2 number, since 2×25425604² = 1292922677529632, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3178197 + ... + 3178204.

Almost surely, 2^25425604 is an apocalyptic number.

It is an amenable number.

25425604 is a deficient number, since it is larger than the sum of its proper divisors (19069210).

25425604 is a wasteful number, since it uses less digits than its factorization.

25425604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6356405 (or 6356403 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 25425604 is about 5042.3807868903. The cubic root of 25425604 is about 294.0517440201.

The spelling of 25425604 in words is "twenty-five million, four hundred twenty-five thousand, six hundred four".