25250287 has 8 divisors (see below), whose sum is σ = 26787456. Its totient is φ = 23718912.

The previous prime is 25250261. The next prime is 25250299. The reversal of 25250287 is 78205252.

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 25250287 - 2¹⁹ = 24725999 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 (25250237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10338 + ... + 12544.

It is an arithmetic number, because the mean of its divisors is an integer number (3348432).

Almost surely, 2^25250287 is an apocalyptic number.

25250287 is a deficient number, since it is larger than the sum of its proper divisors (1537169).

25250287 is a wasteful number, since it uses less digits than its factorization.

25250287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2897.

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 25250287 is about 5024.9663680467. The cubic root of 25250287 is about 293.3743269442.

The spelling of 25250287 in words is "twenty-five million, two hundred fifty thousand, two hundred eighty-seven".