25289492 has 12 divisors (see below), whose sum is σ = 44292276. Its totient is φ = 12634560.

The previous prime is 25289483. The next prime is 25289503. The reversal of 25289492 is 29498252.

It can be written as a sum of positive squares in 2 ways, for example, as 22619536 + 2669956 = 4756^2 + 1634^2 .

It is a congruent number.

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, 7088 + ... + 10040.

It is an arithmetic number, because the mean of its divisors is an integer number (3691023).

Almost surely, 2^25289492 is an apocalyptic number.

It is an amenable number.

25289492 is a deficient number, since it is larger than the sum of its proper divisors (19002784).

25289492 is a wasteful number, since it uses less digits than its factorization.

25289492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5098 (or 5096 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 25289492 is about 5028.8658761196. The cubic root of 25289492 is about 293.5260848611.

The spelling of 25289492 in words is "twenty-five million, two hundred eighty-nine thousand, four hundred ninety-two".