25982481 has 16 divisors (see below), whose sum is σ = 41676800. Its totient is φ = 14065488.

The previous prime is 25982447. The next prime is 25982483. The reversal of 25982481 is 18428952.

It is not a de Polignac number, because 25982481 - 2⁷ = 25982353 is a prime.

It is a super-2 number, since 2×25982481² = 1350178637830722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25982483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32161 + ... + 32958.

It is an arithmetic number, because the mean of its divisors is an integer number (2604800).

Almost surely, 2^25982481 is an apocalyptic number.

25982481 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

25982481 is a deficient number, since it is larger than the sum of its proper divisors (15694319).

25982481 is a wasteful number, since it uses less digits than its factorization.

25982481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65148.

The product of its digits is 46080, while the sum is 39.

The square root of 25982481 is about 5097.3013448294. The cubic root of 25982481 is about 296.1830534691.

The spelling of 25982481 in words is "twenty-five million, nine hundred eighty-two thousand, four hundred eighty-one".