22072573 has 2 divisors, whose sum is σ = 22072574. Its totient is φ = 22072572.

The previous prime is 22072553. The next prime is 22072597. The reversal of 22072573 is 37527022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22071204 + 1369 = 4698^2 + 37^2 .

It is a cyclic number.

It is not a de Polignac number, because 22072573 - 2⁵ = 22072541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22072553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11036286 + 11036287.

It is an arithmetic number, because the mean of its divisors is an integer number (11036287).

Almost surely, 2^22072573 is an apocalyptic number.

It is an amenable number.

22072573 is a deficient number, since it is larger than the sum of its proper divisors (1).

22072573 is an equidigital number, since it uses as much as digits as its factorization.

22072573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 22072573 is about 4698.1456980387. The cubic root of 22072573 is about 280.5117045879.

Adding to 22072573 its reverse (37527022), we get a palindrome (59599595).

The spelling of 22072573 in words is "twenty-two million, seventy-two thousand, five hundred seventy-three".