25056259 has 4 divisors (see below), whose sum is σ = 25337880. Its totient is φ = 24774640.

The previous prime is 25056253. The next prime is 25056271. The reversal of 25056259 is 95265052.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25056259 - 2²¹ = 22959107 is a prime.

It is a super-2 number, since 2×25056259² = 1255632230150162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25056253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140677 + ... + 140854.

It is an arithmetic number, because the mean of its divisors is an integer number (6334470).

Almost surely, 2^25056259 is an apocalyptic number.

25056259 is a deficient number, since it is larger than the sum of its proper divisors (281621).

25056259 is an equidigital number, since it uses as much as digits as its factorization.

25056259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281620.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 25056259 is about 5005.6227384812. The cubic root of 25056259 is about 292.6209459166.

The spelling of 25056259 in words is "twenty-five million, fifty-six thousand, two hundred fifty-nine".