25670765 has 8 divisors (see below), whose sum is σ = 32617080. Its totient is φ = 19328512.

The previous prime is 25670761. The next prime is 25670779. The reversal of 25670765 is 56707652.

It can be written as a sum of positive squares in 4 ways, for example, as 249001 + 25421764 = 499^2 + 5042^2 .

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 25670765 - 2² = 25670761 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25670761) 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, 150920 + ... + 151089.

It is an arithmetic number, because the mean of its divisors is an integer number (4077135).

Almost surely, 2^25670765 is an apocalyptic number.

It is an amenable number.

25670765 is a deficient number, since it is larger than the sum of its proper divisors (6946315).

25670765 is a wasteful number, since it uses less digits than its factorization.

25670765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302031.

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 25670765 is about 5066.6325108498. The cubic root of 25670765 is about 294.9938330608.

The spelling of 25670765 in words is "twenty-five million, six hundred seventy thousand, seven hundred sixty-five".