25496138 has 8 divisors (see below), whose sum is σ = 40257120. Its totient is φ = 12077100.

The previous prime is 25496129. The next prime is 25496143. The reversal of 25496138 is 83169452.

It is a happy number.

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

It is a super-3 number, since 3×25496138³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 670951 = 25496138 / (2 + 5 + 4 + 9 + 6 + 1 + 3 + 8).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335438 + ... + 335513.

It is an arithmetic number, because the mean of its divisors is an integer number (5032140).

Almost surely, 2^25496138 is an apocalyptic number.

25496138 is a deficient number, since it is larger than the sum of its proper divisors (14760982).

25496138 is a wasteful number, since it uses less digits than its factorization.

25496138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670972.

The product of its digits is 51840, while the sum is 38.

The square root of 25496138 is about 5049.3700597203. The cubic root of 25496138 is about 294.3234058210.

The spelling of 25496138 in words is "twenty-five million, four hundred ninety-six thousand, one hundred thirty-eight".