25250951 has 4 divisors (see below), whose sum is σ = 27546504. Its totient is φ = 22955400.

The previous prime is 25250947. The next prime is 25250971. The reversal of 25250951 is 15905252.

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 25250951 - 2² = 25250947 is a prime.

It is a super-2 number, since 2×25250951² = 1275221052808802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25250971) 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, 1147760 + ... + 1147781.

It is an arithmetic number, because the mean of its divisors is an integer number (6886626).

Almost surely, 2^25250951 is an apocalyptic number.

25250951 is a deficient number, since it is larger than the sum of its proper divisors (2295553).

25250951 is a wasteful number, since it uses less digits than its factorization.

25250951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295552.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 25250951 is about 5025.0324377062. The cubic root of 25250951 is about 293.3768985169.

The spelling of 25250951 in words is "twenty-five million, two hundred fifty thousand, nine hundred fifty-one".