25138850 has 24 divisors (see below), whose sum is σ = 51010128. Its totient is φ = 9141200.

The previous prime is 25138849. The next prime is 25138871. The reversal of 25138850 is 5883152.

It is a happy number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22304 + ... + 23403.

It is an arithmetic number, because the mean of its divisors is an integer number (2125422).

Almost surely, 2^25138850 is an apocalyptic number.

25138850 is an abundant number, since it is smaller than the sum of its proper divisors (25871278).

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

25138850 is a wasteful number, since it uses less digits than its factorization.

25138850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45730 (or 45725 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 25138850 is about 5013.8657740311. The cubic root of 25138850 is about 292.9421078647.

The spelling of 25138850 in words is "twenty-five million, one hundred thirty-eight thousand, eight hundred fifty".