25040539 has 8 divisors (see below), whose sum is σ = 25669872. Its totient is φ = 24417120.

The previous prime is 25040503. The next prime is 25040557. The reversal of 25040539 is 93504052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25040539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25040569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7804 + ... + 10534.

It is an arithmetic number, because the mean of its divisors is an integer number (3208734).

Almost surely, 2^25040539 is an apocalyptic number.

25040539 is a deficient number, since it is larger than the sum of its proper divisors (629333).

25040539 is a wasteful number, since it uses less digits than its factorization.

25040539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2957.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 25040539 is about 5004.0522579206. The cubic root of 25040539 is about 292.5597374763.

The spelling of 25040539 in words is "twenty-five million, forty thousand, five hundred thirty-nine".