25640848 has 10 divisors (see below), whose sum is σ = 49679174. Its totient is φ = 12820416.

The previous prime is 25640831. The next prime is 25640863. The reversal of 25640848 is 84804652.

It can be written as a sum of positive squares in only one way, i.e., 22924944 + 2715904 = 4788^2 + 1648^2 .

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, 801261 + ... + 801292.

Almost surely, 2^25640848 is an apocalyptic number.

It is an amenable number.

25640848 is a deficient number, since it is larger than the sum of its proper divisors (24038326).

25640848 is a wasteful number, since it uses less digits than its factorization.

25640848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602561 (or 1602555 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 25640848 is about 5063.6792947421. The cubic root of 25640848 is about 294.8791921310.

The spelling of 25640848 in words is "twenty-five million, six hundred forty thousand, eight hundred forty-eight".