25791766 has 48 divisors (see below), whose sum is σ = 52282368. Its totient is φ = 9266400.

The previous prime is 25791743. The next prime is 25791769. The reversal of 25791766 is 66719752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25791769) 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 23 ways as a sum of consecutive naturals, for example, 25531 + ... + 26521.

It is an arithmetic number, because the mean of its divisors is an integer number (1089216).

Almost surely, 2^25791766 is an apocalyptic number.

25791766 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

25791766 is an abundant number, since it is smaller than the sum of its proper divisors (26490602).

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

25791766 is a wasteful number, since it uses less digits than its factorization.

25791766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037 (or 1024 counting only the distinct ones).

The product of its digits is 158760, while the sum is 43.

The square root of 25791766 is about 5078.5594414164. The cubic root of 25791766 is about 295.4565982888.

The spelling of 25791766 in words is "twenty-five million, seven hundred ninety-one thousand, seven hundred sixty-six".