25849906 has 24 divisors (see below), whose sum is σ = 40792320. Its totient is φ = 12278136.

The previous prime is 25849903. The next prime is 25849913. The reversal of 25849906 is 60994852.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25849903) 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, 327175 + ... + 327253.

It is an arithmetic number, because the mean of its divisors is an integer number (1699680).

Almost surely, 2^25849906 is an apocalyptic number.

25849906 is a deficient number, since it is larger than the sum of its proper divisors (14942414).

25849906 is an equidigital number, since it uses as much as digits as its factorization.

25849906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 25849906 is about 5084.2802833833. The cubic root of 25849906 is about 295.6784385366.

The spelling of 25849906 in words is "twenty-five million, eight hundred forty-nine thousand, nine hundred six".