25422822 has 40 divisors (see below), whose sum is σ = 57426600. Its totient is φ = 8405856.

The previous prime is 25422809. The next prime is 25422823. The reversal of 25422822 is 22822452.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25422823) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 21954 + ... + 23082.

It is an arithmetic number, because the mean of its divisors is an integer number (1435665).

Almost surely, 2^25422822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25422822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28713300).

25422822 is an abundant number, since it is smaller than the sum of its proper divisors (32003778).

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

25422822 is a wasteful number, since it uses less digits than its factorization.

25422822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282 (or 1273 counting only the distinct ones).

The product of its digits is 5120, while the sum is 27.

The square root of 25422822 is about 5042.1049175915. The cubic root of 25422822 is about 294.0410188499.

It can be divided in two parts, 25422 and 822, that added together give a square (26244 = 162²).

The spelling of 25422822 in words is "twenty-five million, four hundred twenty-two thousand, eight hundred twenty-two".