25250251 has 8 divisors (see below), whose sum is σ = 28375200. Its totient is φ = 22294272.

The previous prime is 25250237. The next prime is 25250257. The reversal of 25250251 is 15205252.

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

It is not a de Polignac number, because 25250251 - 2⁷ = 25250123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25250257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41926 + ... + 42523.

It is an arithmetic number, because the mean of its divisors is an integer number (3546900).

Almost surely, 2^25250251 is an apocalyptic number.

25250251 is a deficient number, since it is larger than the sum of its proper divisors (3124949).

25250251 is a wasteful number, since it uses less digits than its factorization.

25250251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84485.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 25250251 is about 5024.9627859319. The cubic root of 25250251 is about 293.3741875203.

The spelling of 25250251 in words is "twenty-five million, two hundred fifty thousand, two hundred fifty-one".