25961766 has 32 divisors (see below), whose sum is σ = 54286848. Its totient is φ = 8268960.

The previous prime is 25961743. The next prime is 25961773. The reversal of 25961766 is 66716952.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11056 + ... + 13196.

It is an arithmetic number, because the mean of its divisors is an integer number (1696464).

Almost surely, 2^25961766 is an apocalyptic number.

25961766 is an abundant number, since it is smaller than the sum of its proper divisors (28325082).

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

25961766 is a wasteful number, since it uses less digits than its factorization.

25961766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236.

The product of its digits is 136080, while the sum is 42.

The square root of 25961766 is about 5095.2689821049. The cubic root of 25961766 is about 296.1043201205.

The spelling of 25961766 in words is "twenty-five million, nine hundred sixty-one thousand, seven hundred sixty-six".