25250961 has 8 divisors (see below), whose sum is σ = 33701184. Its totient is φ = 16817360.

The previous prime is 25250947. The next prime is 25250971. The reversal of 25250961 is 16905252.

It is a happy number.

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 25250961 - 2¹⁰ = 25249937 is a prime.

It is a super-2 number, since 2×25250961² = 1275222062847042, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

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 7 ways as a sum of consecutive naturals, for example, 21 + ... + 7106.

It is an arithmetic number, because the mean of its divisors is an integer number (4212648).

Almost surely, 2^25250961 is an apocalyptic number.

It is an amenable number.

25250961 is a deficient number, since it is larger than the sum of its proper divisors (8450223).

25250961 is a wasteful number, since it uses less digits than its factorization.

25250961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8311.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 25250961 is about 5025.0334327246. The cubic root of 25250961 is about 293.3769372450.

It can be divided in two parts, 25 and 250961, that added together give a triangular number (250986 = T₇₀₈).

The spelling of 25250961 in words is "twenty-five million, two hundred fifty thousand, nine hundred sixty-one".