25256287 has 8 divisors (see below), whose sum is σ = 29568672. Its totient is φ = 21120000.

The previous prime is 25256269. The next prime is 25256299. The reversal of 25256287 is 78265252.

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 25256287 - 2¹⁹ = 24731999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25256207) 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, 43714 + ... + 44287.

It is an arithmetic number, because the mean of its divisors is an integer number (3696084).

Almost surely, 2^25256287 is an apocalyptic number.

25256287 is a deficient number, since it is larger than the sum of its proper divisors (4312385).

25256287 is an equidigital number, since it uses as much as digits as its factorization.

25256287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88049.

The product of its digits is 67200, while the sum is 37.

The square root of 25256287 is about 5025.5633515060. The cubic root of 25256287 is about 293.3975624102.

The spelling of 25256287 in words is "twenty-five million, two hundred fifty-six thousand, two hundred eighty-seven".