25826481 has 12 divisors (see below), whose sum is σ = 38313652. Its totient is φ = 16752096.

The previous prime is 25826473. The next prime is 25826509. The reversal of 25826481 is 18462852.

25826481 is a `hidden beast` number, since 2 + 5 + 8 + 2 + 648 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14130081 + 11696400 = 3759^2 + 3420^2 .

It is not a de Polignac number, because 25826481 - 2³ = 25826473 is a prime.

It is a super-2 number, since 2×25826481² = 1334014241686722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25826431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38446 + ... + 39111.

Almost surely, 2^25826481 is an apocalyptic number.

It is an amenable number.

25826481 is a deficient number, since it is larger than the sum of its proper divisors (12487171).

25826481 is a wasteful number, since it uses less digits than its factorization.

25826481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77600 (or 77597 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 25826481 is about 5081.9760920335. The cubic root of 25826481 is about 295.5890976488.

The spelling of 25826481 in words is "twenty-five million, eight hundred twenty-six thousand, four hundred eighty-one".