25240887 has 24 divisors (see below), whose sum is σ = 41801760. Its totient is φ = 14376960.

The previous prime is 25240877. The next prime is 25240939. The reversal of 25240887 is 78804252.

It is a happy number.

It is not a de Polignac number, because 25240887 - 2⁶ = 25240823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25240807) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 32439 + ... + 33207.

It is an arithmetic number, because the mean of its divisors is an integer number (1741740).

Almost surely, 2^25240887 is an apocalyptic number.

25240887 is a deficient number, since it is larger than the sum of its proper divisors (16560873).

25240887 is a wasteful number, since it uses less digits than its factorization.

25240887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303 (or 1300 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 25240887 is about 5024.0309513378. The cubic root of 25240887 is about 293.3379173124.

The spelling of 25240887 in words is "twenty-five million, two hundred forty thousand, eight hundred eighty-seven".