25766465 has 8 divisors (see below), whose sum is σ = 31081128. Its totient is φ = 20505600.

The previous prime is 25766459. The next prime is 25766483. The reversal of 25766465 is 56466752.

It can be written as a sum of positive squares in 4 ways, for example, as 132496 + 25633969 = 364^2 + 5063^2 .

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

It is not a de Polignac number, because 25766465 - 2⁴ = 25766449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12386 + ... + 14315.

It is an arithmetic number, because the mean of its divisors is an integer number (3885141).

Almost surely, 2^25766465 is an apocalyptic number.

It is an amenable number.

25766465 is a deficient number, since it is larger than the sum of its proper divisors (5314663).

25766465 is a wasteful number, since it uses less digits than its factorization.

25766465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26899.

The product of its digits is 302400, while the sum is 41.

The square root of 25766465 is about 5076.0678679466. The cubic root of 25766465 is about 295.3599551315.

The spelling of 25766465 in words is "twenty-five million, seven hundred sixty-six thousand, four hundred sixty-five".