25085790 has 48 divisors (see below), whose sum is σ = 65581776. Its totient is φ = 6652800.

The previous prime is 25085779. The next prime is 25085831. The reversal of 25085790 is 9758052.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18330 + ... + 19650.

It is an arithmetic number, because the mean of its divisors is an integer number (1366287).

Almost surely, 2^25085790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25085790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32790888).

25085790 is an abundant number, since it is smaller than the sum of its proper divisors (40495986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25085790 is a wasteful number, since it uses less digits than its factorization.

25085790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545 (or 1542 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 25085790 is about 5008.5716526770. The cubic root of 25085790 is about 292.7358606038.

The spelling of 25085790 in words is "twenty-five million, eighty-five thousand, seven hundred ninety".