25126138 has 8 divisors (see below), whose sum is σ = 37879200. Its totient is φ = 12499740.

The previous prime is 25126117. The next prime is 25126141. The reversal of 25126138 is 83162152.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 31168 + ... + 31963.

It is an arithmetic number, because the mean of its divisors is an integer number (4734900).

Almost surely, 2^25126138 is an apocalyptic number.

25126138 is a deficient number, since it is larger than the sum of its proper divisors (12753062).

25126138 is a wasteful number, since it uses less digits than its factorization.

25126138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63332.

The product of its digits is 2880, while the sum is 28.

The square root of 25126138 is about 5012.5979292179. The cubic root of 25126138 is about 292.8927220477.

The spelling of 25126138 in words is "twenty-five million, one hundred twenty-six thousand, one hundred thirty-eight".