25488987 has 8 divisors (see below), whose sum is σ = 34233936. Its totient is φ = 16868352.

The previous prime is 25488979. The next prime is 25488989. The reversal of 25488987 is 78988452.

It is a happy number.

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

It is not a de Polignac number, because 25488987 - 2³ = 25488979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25488989) 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, 30598 + ... + 31419.

It is an arithmetic number, because the mean of its divisors is an integer number (4279242).

Almost surely, 2^25488987 is an apocalyptic number.

25488987 is a deficient number, since it is larger than the sum of its proper divisors (8744949).

25488987 is a wasteful number, since it uses less digits than its factorization.

25488987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62157.

The product of its digits is 1290240, while the sum is 51.

The square root of 25488987 is about 5048.6619019301. The cubic root of 25488987 is about 294.2958865750.

The spelling of 25488987 in words is "twenty-five million, four hundred eighty-eight thousand, nine hundred eighty-seven".