25568769 has 16 divisors (see below), whose sum is σ = 35385344. Its totient is φ = 16405200.

The previous prime is 25568759. The next prime is 25568773. The reversal of 25568769 is 96786552.

It is a happy number.

It is not a de Polignac number, because 25568769 - 2⁸ = 25568513 is a prime.

It is a super-2 number, since 2×25568769² = 1307523896350722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25568729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18972 + ... + 20274.

It is an arithmetic number, because the mean of its divisors is an integer number (2211584).

Almost surely, 2^25568769 is an apocalyptic number.

It is an amenable number.

25568769 is a deficient number, since it is larger than the sum of its proper divisors (9816575).

25568769 is a wasteful number, since it uses less digits than its factorization.

25568769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548.

The product of its digits is 907200, while the sum is 48.

The square root of 25568769 is about 5056.5570302331. The cubic root of 25568769 is about 294.6026211335.

It can be divided in two parts, 2556 and 8769, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 25568769 in words is "twenty-five million, five hundred sixty-eight thousand, seven hundred sixty-nine".