25764822 has 12 divisors (see below), whose sum is σ = 55823820. Its totient is φ = 8588268.

The previous prime is 25764821. The next prime is 25764833. The reversal of 25764822 is 22846752.

25764822 is a `hidden beast` number, since 2 + 5 + 7 + 648 + 2 + 2 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25764821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 715672 + ... + 715707.

It is an arithmetic number, because the mean of its divisors is an integer number (4651985).

Almost surely, 2^25764822 is an apocalyptic number.

25764822 is an abundant number, since it is smaller than the sum of its proper divisors (30058998).

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

25764822 is a wasteful number, since it uses less digits than its factorization.

25764822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431387 (or 1431384 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 25764822 is about 5075.9060274989. The cubic root of 25764822 is about 295.3536771170.

The spelling of 25764822 in words is "twenty-five million, seven hundred sixty-four thousand, eight hundred twenty-two".