25718080 has 28 divisors (see below), whose sum is σ = 61241940. Its totient is φ = 10287104.

The previous prime is 25718023. The next prime is 25718081. The reversal of 25718080 is 8081752.

It can be written as a sum of positive squares in 2 ways, for example, as 10601536 + 15116544 = 3256^2 + 3888^2 .

It is a super-2 number, since 2×25718080² = 1322839277772800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25718081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39865 + ... + 40504.

Almost surely, 2^25718080 is an apocalyptic number.

25718080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25718080 is an abundant number, since it is smaller than the sum of its proper divisors (35523860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25718080 is an equidigital number, since it uses as much as digits as its factorization.

25718080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80386 (or 80376 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 25718080 is about 5071.2996361879. The cubic root of 25718080 is about 295.1749608490.

The spelling of 25718080 in words is "twenty-five million, seven hundred eighteen thousand, eighty".