25865254 has 4 divisors (see below), whose sum is σ = 38797884. Its totient is φ = 12932626.

The previous prime is 25865209. The next prime is 25865263. The reversal of 25865254 is 45256852.

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

It is a super-2 number, since 2×25865254² = 1338022728969032, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 6466312 + ... + 6466315.

It is an arithmetic number, because the mean of its divisors is an integer number (9699471).

Almost surely, 2^25865254 is an apocalyptic number.

25865254 is a deficient number, since it is larger than the sum of its proper divisors (12932630).

25865254 is a wasteful number, since it uses less digits than its factorization.

25865254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12932629.

The product of its digits is 96000, while the sum is 37.

The square root of 25865254 is about 5085.7894175831. The cubic root of 25865254 is about 295.7369451947.

The spelling of 25865254 in words is "twenty-five million, eight hundred sixty-five thousand, two hundred fifty-four".