25758065 has 8 divisors (see below), whose sum is σ = 30938280. Its totient is φ = 20587392.

The previous prime is 25758049. The next prime is 25758067. The reversal of 25758065 is 56085752.

It can be written as a sum of positive squares in 4 ways, for example, as 73441 + 25684624 = 271^2 + 5068^2 .

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 25758065 - 2⁴ = 25758049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25758067) 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, 6731 + ... + 9839.

It is an arithmetic number, because the mean of its divisors is an integer number (3867285).

Almost surely, 2^25758065 is an apocalyptic number.

It is an amenable number.

25758065 is a deficient number, since it is larger than the sum of its proper divisors (5180215).

25758065 is a wasteful number, since it uses less digits than its factorization.

25758065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4771.

The product of its (nonzero) digits is 84000, while the sum is 38.

The square root of 25758065 is about 5075.2403883954. The cubic root of 25758065 is about 295.3278553553.

The spelling of 25758065 in words is "twenty-five million, seven hundred fifty-eight thousand, sixty-five".