26231985 has 32 divisors (see below), whose sum is σ = 50225280. Its totient is φ = 12913344.

The previous prime is 26231963. The next prime is 26231993. The reversal of 26231985 is 58913262.

26231985 is a `hidden beast` number, since 262 + 319 + 85 = 666.

It is not a de Polignac number, because 26231985 - 2⁸ = 26231729 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5719 + ... + 9228.

It is an arithmetic number, because the mean of its divisors is an integer number (1569540).

Almost surely, 2^26231985 is an apocalyptic number.

It is an amenable number.

26231985 is a deficient number, since it is larger than the sum of its proper divisors (23993295).

26231985 is a wasteful number, since it uses less digits than its factorization.

26231985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14974 (or 14968 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 26231985 is about 5121.7169972579. The cubic root of 26231985 is about 297.1280949340.

The spelling of 26231985 in words is "twenty-six million, two hundred thirty-one thousand, nine hundred eighty-five".