25196965 has 8 divisors (see below), whose sum is σ = 30732408. Its totient is φ = 19826880.

The previous prime is 25196957. The next prime is 25196999. The reversal of 25196965 is 56969152.

It can be written as a sum of positive squares in 4 ways, for example, as 605284 + 24591681 = 778^2 + 4959^2 .

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

It is not a de Polignac number, because 25196965 - 2³ = 25196957 is a prime.

It is a super-2 number, since 2×25196965² = 1269774090422450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 41002 + ... + 41611.

It is an arithmetic number, because the mean of its divisors is an integer number (3841551).

Almost surely, 2^25196965 is an apocalyptic number.

It is an amenable number.

25196965 is a deficient number, since it is larger than the sum of its proper divisors (5535443).

25196965 is an equidigital number, since it uses as much as digits as its factorization.

25196965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82679.

The product of its digits is 145800, while the sum is 43.

The square root of 25196965 is about 5019.6578568663. The cubic root of 25196965 is about 293.1676714671.

The spelling of 25196965 in words is "twenty-five million, one hundred ninety-six thousand, nine hundred sixty-five".