22452541 has 4 divisors (see below), whose sum is σ = 22462972. Its totient is φ = 22442112.

The previous prime is 22452539. The next prime is 22452553. The reversal of 22452541 is 14525422.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 11363641 + 11088900 = 3371^2 + 3330^2 .

It is a cyclic number.

It is not a de Polignac number, because 22452541 - 2¹ = 22452539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22452581) 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, 660 + ... + 6733.

It is an arithmetic number, because the mean of its divisors is an integer number (5615743).

Almost surely, 2^22452541 is an apocalyptic number.

It is an amenable number.

22452541 is a deficient number, since it is larger than the sum of its proper divisors (10431).

22452541 is an equidigital number, since it uses as much as digits as its factorization.

22452541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10430.

The product of its digits is 3200, while the sum is 25.

The square root of 22452541 is about 4738.4112316261. The cubic root of 22452541 is about 282.1121772578.

Adding to 22452541 its reverse (14525422), we get a palindrome (36977963).

The spelling of 22452541 in words is "twenty-two million, four hundred fifty-two thousand, five hundred forty-one".