25138790 has 16 divisors (see below), whose sum is σ = 45456768. Its totient is φ = 10009536.

The previous prime is 25138783. The next prime is 25138807. The reversal of 25138790 is 9783152.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25138790.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3407 + ... + 7866.

It is an arithmetic number, because the mean of its divisors is an integer number (2841048).

Almost surely, 2^25138790 is an apocalyptic number.

25138790 is a deficient number, since it is larger than the sum of its proper divisors (20317978).

25138790 is a wasteful number, since it uses less digits than its factorization.

25138790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11503.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 25138790 is about 5013.8597906204. The cubic root of 25138790 is about 292.9418748052.

The spelling of 25138790 in words is "twenty-five million, one hundred thirty-eight thousand, seven hundred ninety".