25256043 has 10 divisors (see below), whose sum is σ = 37728284. Its totient is φ = 16837308.

The previous prime is 25256039. The next prime is 25256053. The reversal of 25256043 is 34065252.

25256043 is a `hidden beast` number, since 2 + 52 + 5 + 604 + 3 = 666.

It is not a de Polignac number, because 25256043 - 2² = 25256039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25255998 and 25256016.

It is not an unprimeable number, because it can be changed into a prime (25256003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 155821 + ... + 155982.

Almost surely, 2^25256043 is an apocalyptic number.

25256043 is a deficient number, since it is larger than the sum of its proper divisors (12472241).

25256043 is an equidigital number, since it uses as much as digits as its factorization.

25256043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311815 (or 311806 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 25256043 is about 5025.5390755619. The cubic root of 25256043 is about 293.3966175730.

The spelling of 25256043 in words is "twenty-five million, two hundred fifty-six thousand, forty-three".