25546422 has 32 divisors (see below), whose sum is σ = 58164480. Its totient is φ = 7404320.

The previous prime is 25546421. The next prime is 25546447. The reversal of 25546422 is 22464552.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 25546422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25546421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6897 + ... + 9932.

It is an arithmetic number, because the mean of its divisors is an integer number (1817640).

Almost surely, 2^25546422 is an apocalyptic number.

25546422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25546422 is an abundant number, since it is smaller than the sum of its proper divisors (32618058).

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

25546422 is a wasteful number, since it uses less digits than its factorization.

25546422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16868.

The product of its digits is 19200, while the sum is 30.

The square root of 25546422 is about 5054.3468420756. The cubic root of 25546422 is about 294.5167689534.

The spelling of 25546422 in words is "twenty-five million, five hundred forty-six thousand, four hundred twenty-two".