25489136 has 10 divisors (see below), whose sum is σ = 49385232. Its totient is φ = 12744560.

The previous prime is 25489109. The next prime is 25489147. The reversal of 25489136 is 63198452.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 25489136.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 796520 + ... + 796551.

Almost surely, 2^25489136 is an apocalyptic number.

It is an amenable number.

25489136 is a deficient number, since it is larger than the sum of its proper divisors (23896096).

25489136 is a wasteful number, since it uses less digits than its factorization.

25489136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593079 (or 1593073 counting only the distinct ones).

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

The square root of 25489136 is about 5048.6766582937. The cubic root of 25489136 is about 294.2964600253.

The spelling of 25489136 in words is "twenty-five million, four hundred eighty-nine thousand, one hundred thirty-six".