22425213 has 4 divisors (see below), whose sum is σ = 29900288. Its totient is φ = 14950140.

The previous prime is 22425211. The next prime is 22425223. The reversal of 22425213 is 31252422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 22425213 - 2¹ = 22425211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22425213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22425211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3737533 + ... + 3737538.

It is an arithmetic number, because the mean of its divisors is an integer number (7475072).

Almost surely, 2^22425213 is an apocalyptic number.

It is an amenable number.

22425213 is a deficient number, since it is larger than the sum of its proper divisors (7475075).

22425213 is an equidigital number, since it uses as much as digits as its factorization.

22425213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7475074.

The product of its digits is 960, while the sum is 21.

The square root of 22425213 is about 4735.5266866527. The cubic root of 22425213 is about 281.9976736391.

Adding to 22425213 its reverse (31252422), we get a palindrome (53677635).

The spelling of 22425213 in words is "twenty-two million, four hundred twenty-five thousand, two hundred thirteen".