25256270 has 32 divisors (see below), whose sum is σ = 49285152. Its totient is φ = 9263232.

The previous prime is 25256269. The next prime is 25256299. The reversal of 25256270 is 7265252.

25256270 = 173² + 174² + ... + 432².

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21929 + ... + 23051.

It is an arithmetic number, because the mean of its divisors is an integer number (1540161).

Almost surely, 2^25256270 is an apocalyptic number.

25256270 is a deficient number, since it is larger than the sum of its proper divisors (24028882).

25256270 is a wasteful number, since it uses less digits than its factorization.

25256270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 25256270 is about 5025.5616601530. The cubic root of 25256270 is about 293.3974965816.

The spelling of 25256270 in words is "twenty-five million, two hundred fifty-six thousand, two hundred seventy".