25979148 has 36 divisors (see below), whose sum is σ = 70722288. Its totient is φ = 7993440.

The previous prime is 25979141. The next prime is 25979159. The reversal of 25979148 is 84197952.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×25979148² = 1349832261611808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25979141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27288 + ... + 28223.

It is an arithmetic number, because the mean of its divisors is an integer number (1964508).

Almost surely, 2^25979148 is an apocalyptic number.

It is an amenable number.

25979148 is an abundant number, since it is smaller than the sum of its proper divisors (44743140).

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

25979148 is a wasteful number, since it uses less digits than its factorization.

25979148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55534 (or 55529 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 25979148 is about 5096.9743966396. The cubic root of 25979148 is about 296.1703882643.

The spelling of 25979148 in words is "twenty-five million, nine hundred seventy-nine thousand, one hundred forty-eight".