25967765 has 4 divisors (see below), whose sum is σ = 31161324. Its totient is φ = 20774208.

The previous prime is 25967741. The next prime is 25967791. The reversal of 25967765 is 56776952.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18601969 + 7365796 = 4313^2 + 2714^2 .

It is a cyclic number.

It is not a de Polignac number, because 25967765 - 2¹⁰ = 25966741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2596772 + ... + 2596781.

It is an arithmetic number, because the mean of its divisors is an integer number (7790331).

Almost surely, 2^25967765 is an apocalyptic number.

It is an amenable number.

25967765 is a deficient number, since it is larger than the sum of its proper divisors (5193559).

25967765 is an equidigital number, since it uses as much as digits as its factorization.

25967765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5193558.

The product of its digits is 793800, while the sum is 47.

The square root of 25967765 is about 5095.8576314493. The cubic root of 25967765 is about 296.1271253618.

The spelling of 25967765 in words is "twenty-five million, nine hundred sixty-seven thousand, seven hundred sixty-five".