25752591 has 6 divisors (see below), whose sum is σ = 37198200. Its totient is φ = 17168388.

The previous prime is 25752563. The next prime is 25752593. The reversal of 25752591 is 19525752.

It is not a de Polignac number, because 25752591 - 2⁹ = 25752079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25752593) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1430691 + ... + 1430708.

It is an arithmetic number, because the mean of its divisors is an integer number (6199700).

Almost surely, 2^25752591 is an apocalyptic number.

25752591 is a deficient number, since it is larger than the sum of its proper divisors (11445609).

25752591 is a wasteful number, since it uses less digits than its factorization.

25752591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2861405 (or 2861402 counting only the distinct ones).

The product of its digits is 31500, while the sum is 36.

The square root of 25752591 is about 5074.7010749403. The cubic root of 25752591 is about 295.3069332452.

The spelling of 25752591 in words is "twenty-five million, seven hundred fifty-two thousand, five hundred ninety-one".