25138706 has 16 divisors (see below), whose sum is σ = 39217920. Its totient is φ = 12072240.

The previous prime is 25138693. The next prime is 25138723. The reversal of 25138706 is 60783152.

It is a happy 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, 7160 + ... + 10076.

It is an arithmetic number, because the mean of its divisors is an integer number (2451120).

Almost surely, 2^25138706 is an apocalyptic number.

25138706 is a deficient number, since it is larger than the sum of its proper divisors (14079214).

25138706 is a wasteful number, since it uses less digits than its factorization.

25138706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3089.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 25138706 is about 5013.8514138335. The cubic root of 25138706 is about 292.9415485214.

The spelling of 25138706 in words is "twenty-five million, one hundred thirty-eight thousand, seven hundred six".