25137249 has 16 divisors (see below), whose sum is σ = 34997760. Its totient is φ = 16030080.

The previous prime is 25137227. The next prime is 25137263. The reversal of 25137249 is 94273152.

It is not a de Polignac number, because 25137249 - 2¹⁶ = 25071713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25137289) 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 15 ways as a sum of consecutive naturals, for example, 6759 + ... + 9795.

It is an arithmetic number, because the mean of its divisors is an integer number (2187360).

Almost surely, 2^25137249 is an apocalyptic number.

It is an amenable number.

25137249 is a deficient number, since it is larger than the sum of its proper divisors (9860511).

25137249 is a wasteful number, since it uses less digits than its factorization.

25137249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3160.

The product of its digits is 15120, while the sum is 33.

The square root of 25137249 is about 5013.7061142432. The cubic root of 25137249 is about 292.9358889343.

The spelling of 25137249 in words is "twenty-five million, one hundred thirty-seven thousand, two hundred forty-nine".