25256535 has 16 divisors (see below), whose sum is σ = 41804640. Its totient is φ = 13005440.

The previous prime is 25256519. The next prime is 25256551. The reversal of 25256535 is 53565252.

It is an interprime number because it is at equal distance from previous prime (25256519) and next prime (25256551).

It is not a de Polignac number, because 25256535 - 2⁴ = 25256519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25256496 and 25256505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28596 + ... + 29465.

It is an arithmetic number, because the mean of its divisors is an integer number (2612790).

Almost surely, 2^25256535 is an apocalyptic number.

25256535 is a deficient number, since it is larger than the sum of its proper divisors (16548105).

25256535 is a wasteful number, since it uses less digits than its factorization.

25256535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58098.

The product of its digits is 45000, while the sum is 33.

The square root of 25256535 is about 5025.5880252961. The cubic root of 25256535 is about 293.3985227302.

The spelling of 25256535 in words is "twenty-five million, two hundred fifty-six thousand, five hundred thirty-five".