25742492 has 12 divisors (see below), whose sum is σ = 47420520. Its totient is φ = 12193776.

The previous prime is 25742489. The next prime is 25742503. The reversal of 25742492 is 29424752.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169283 + ... + 169434.

It is an arithmetic number, because the mean of its divisors is an integer number (3951710).

Almost surely, 2^25742492 is an apocalyptic number.

It is an amenable number.

25742492 is a deficient number, since it is larger than the sum of its proper divisors (21678028).

25742492 is a wasteful number, since it uses less digits than its factorization.

25742492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338740 (or 338738 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 25742492 is about 5073.7059433909. The cubic root of 25742492 is about 295.2683261960.

The spelling of 25742492 in words is "twenty-five million, seven hundred forty-two thousand, four hundred ninety-two".