22452553 has 2 divisors, whose sum is σ = 22452554. Its totient is φ = 22452552.

The previous prime is 22452539. The next prime is 22452581. The reversal of 22452553 is 35525422.

It is an a-pointer prime, because the next prime (22452581) can be obtained adding 22452553 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17665209 + 4787344 = 4203^2 + 2188^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22452553 is a prime.

It is not a weakly prime, because it can be changed into another prime (22452503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11226276 + 11226277.

It is an arithmetic number, because the mean of its divisors is an integer number (11226277).

Almost surely, 2^22452553 is an apocalyptic number.

It is an amenable number.

22452553 is a deficient number, since it is larger than the sum of its proper divisors (1).

22452553 is an equidigital number, since it uses as much as digits as its factorization.

22452553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12000, while the sum is 28.

The square root of 22452553 is about 4738.4124978731. The cubic root of 22452553 is about 282.1122275171.

Adding to 22452553 its reverse (35525422), we get a palindrome (57977975).

It can be divided in two parts, 22452 and 553, that added together give a triangular number (23005 = T₂₁₄).

The spelling of 22452553 in words is "twenty-two million, four hundred fifty-two thousand, five hundred fifty-three".