25652138 has 16 divisors (see below), whose sum is σ = 39420000. Its totient is φ = 12515472.

The previous prime is 25652131. The next prime is 25652141. The reversal of 25652138 is 83125652.

It is not an unprimeable number, because it can be changed into a prime (25652131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16853 + ... + 18311.

It is an arithmetic number, because the mean of its divisors is an integer number (2463750).

Almost surely, 2^25652138 is an apocalyptic number.

25652138 is a deficient number, since it is larger than the sum of its proper divisors (13767862).

25652138 is a wasteful number, since it uses less digits than its factorization.

25652138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669.

The product of its digits is 14400, while the sum is 32.

The square root of 25652138 is about 5064.7939740921. The cubic root of 25652138 is about 294.9224654992.

The spelling of 25652138 in words is "twenty-five million, six hundred fifty-two thousand, one hundred thirty-eight".