25508087 has 4 divisors (see below), whose sum is σ = 27827016. Its totient is φ = 23189160.

The previous prime is 25508083. The next prime is 25508101. The reversal of 25508087 is 78080552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25508087 - 2² = 25508083 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 (25508083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1159448 + ... + 1159469.

It is an arithmetic number, because the mean of its divisors is an integer number (6956754).

Almost surely, 2^25508087 is an apocalyptic number.

25508087 is a deficient number, since it is larger than the sum of its proper divisors (2318929).

25508087 is a wasteful number, since it uses less digits than its factorization.

25508087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318928.

The product of its (nonzero) digits is 22400, while the sum is 35.

The square root of 25508087 is about 5050.5531380236. The cubic root of 25508087 is about 294.3693777654.

The spelling of 25508087 in words is "twenty-five million, five hundred eight thousand, eighty-seven".