25988011 has 4 divisors (see below), whose sum is σ = 29700592. Its totient is φ = 22275432.

The previous prime is 25987993. The next prime is 25988021. The reversal of 25988011 is 11088952.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25988011 - 2⁵ = 25987979 is a prime.

It is a super-2 number, since 2×25988011² = 1350753431472242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25988021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1856280 + ... + 1856293.

It is an arithmetic number, because the mean of its divisors is an integer number (7425148).

Almost surely, 2^25988011 is an apocalyptic number.

25988011 is a deficient number, since it is larger than the sum of its proper divisors (3712581).

25988011 is an equidigital number, since it uses as much as digits as its factorization.

25988011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3712580.

The product of its (nonzero) digits is 5760, while the sum is 34.

The square root of 25988011 is about 5097.8437598655. The cubic root of 25988011 is about 296.2040647562.

It can be divided in two parts, 2598 and 8011, that added together give a square (10609 = 103²).

The spelling of 25988011 in words is "twenty-five million, nine hundred eighty-eight thousand, eleven".