25498785 has 32 divisors (see below), whose sum is σ = 44972928. Its totient is φ = 12257280.

The previous prime is 25498747. The next prime is 25498807. The reversal of 25498785 is 58789452.

It is not a de Polignac number, because 25498785 - 2⁶ = 25498721 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6865 + ... + 9905.

It is an arithmetic number, because the mean of its divisors is an integer number (1405404).

Almost surely, 2^25498785 is an apocalyptic number.

It is an amenable number.

25498785 is a deficient number, since it is larger than the sum of its proper divisors (19474143).

25498785 is a wasteful number, since it uses less digits than its factorization.

25498785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3105.

The product of its digits is 806400, while the sum is 48.

The square root of 25498785 is about 5049.6321648215. The cubic root of 25498785 is about 294.3335909857. Note that the first 3 decimals are identical.

The spelling of 25498785 in words is "twenty-five million, four hundred ninety-eight thousand, seven hundred eighty-five".