25790766 has 8 divisors (see below), whose sum is σ = 51581544. Its totient is φ = 8596920.

The previous prime is 25790761. The next prime is 25790767. The reversal of 25790766 is 66709752.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

25790766 is an admirable number.

It is a super-2 number, since 2×25790766² = 1330327221733512, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25790761) 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 3 ways as a sum of consecutive naturals, for example, 2149225 + ... + 2149236.

It is an arithmetic number, because the mean of its divisors is an integer number (6447693).

Almost surely, 2^25790766 is an apocalyptic number.

25790766 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25790766 is a wasteful number, since it uses less digits than its factorization.

25790766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4298466.

The product of its (nonzero) digits is 158760, while the sum is 42.

The square root of 25790766 is about 5078.4609873465. The cubic root of 25790766 is about 295.4527797520.

The spelling of 25790766 in words is "twenty-five million, seven hundred ninety thousand, seven hundred sixty-six".