25862859 has 12 divisors (see below), whose sum is σ = 40753752. Its totient is φ = 15674400.

The previous prime is 25862843. The next prime is 25862869. The reversal of 25862859 is 95826852.

It is not a de Polignac number, because 25862859 - 2⁴ = 25862843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25862839) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130522 + ... + 130719.

It is an arithmetic number, because the mean of its divisors is an integer number (3396146).

Almost surely, 2^25862859 is an apocalyptic number.

25862859 is a deficient number, since it is larger than the sum of its proper divisors (14890893).

25862859 is a wasteful number, since it uses less digits than its factorization.

25862859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261258 (or 261255 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 25862859 is about 5085.5539521275. The cubic root of 25862859 is about 295.7278169662.

It can be divided in two parts, 2586 and 2859, that added together give a palindrome (5445).

The spelling of 25862859 in words is "twenty-five million, eight hundred sixty-two thousand, eight hundred fifty-nine".