25115887 has 8 divisors (see below), whose sum is σ = 25722000. Its totient is φ = 24515904.

The previous prime is 25115873. The next prime is 25115897. The reversal of 25115887 is 78851152.

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

It is a cyclic number.

It is not a de Polignac number, because 25115887 - 2¹⁵ = 25083119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25115807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7363 + ... + 10219.

It is an arithmetic number, because the mean of its divisors is an integer number (3215250).

Almost surely, 2^25115887 is an apocalyptic number.

25115887 is a deficient number, since it is larger than the sum of its proper divisors (606113).

25115887 is a wasteful number, since it uses less digits than its factorization.

25115887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3065.

The product of its digits is 22400, while the sum is 37.

The square root of 25115887 is about 5011.5753012401. The cubic root of 25115887 is about 292.8528850235.

The spelling of 25115887 in words is "twenty-five million, one hundred fifteen thousand, eight hundred eighty-seven".