25312648 has 8 divisors (see below), whose sum is σ = 47461230. Its totient is φ = 12656320.

The previous prime is 25312613. The next prime is 25312687. The reversal of 25312648 is 84621352.

It can be written as a sum of positive squares in only one way, i.e., 14303524 + 11009124 = 3782^2 + 3318^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1582033 + ... + 1582048.

Almost surely, 2^25312648 is an apocalyptic number.

It is an amenable number.

25312648 is a deficient number, since it is larger than the sum of its proper divisors (22148582).

25312648 is a wasteful number, since it uses less digits than its factorization.

25312648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3164087 (or 3164083 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 25312648 is about 5031.1676577113. The cubic root of 25312648 is about 293.6156453339.

The spelling of 25312648 in words is "twenty-five million, three hundred twelve thousand, six hundred forty-eight".