25092138 has 16 divisors (see below), whose sum is σ = 50820480. Its totient is φ = 8258016.

The previous prime is 25092131. The next prime is 25092191. The reversal of 25092138 is 83129052.

It is a happy number.

It is a super-2 number, since 2×25092138² = 1259230778822088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25092131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25995 + ... + 26942.

It is an arithmetic number, because the mean of its divisors is an integer number (3176280).

Almost surely, 2^25092138 is an apocalyptic number.

25092138 is an abundant number, since it is smaller than the sum of its proper divisors (25728342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25092138 is a wasteful number, since it uses less digits than its factorization.

25092138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53021.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 25092138 is about 5009.2053261970. The cubic root of 25092138 is about 292.7605509500.

The spelling of 25092138 in words is "twenty-five million, ninety-two thousand, one hundred thirty-eight".