25240087 has 8 divisors (see below), whose sum is σ = 26773632. Its totient is φ = 23712000.

The previous prime is 25240067. The next prime is 25240091. The reversal of 25240087 is 78004252.

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 25240087 - 2⁷ = 25239959 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 (25240057) 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, 11962 + ... + 13912.

It is an arithmetic number, because the mean of its divisors is an integer number (3346704).

Almost surely, 2^25240087 is an apocalyptic number.

25240087 is a deficient number, since it is larger than the sum of its proper divisors (1533545).

25240087 is a wasteful number, since it uses less digits than its factorization.

25240087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2729.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 25240087 is about 5023.9513333630. The cubic root of 25240087 is about 293.3348182030.

The spelling of 25240087 in words is "twenty-five million, two hundred forty thousand, eighty-seven".