73222573 has 2 divisors, whose sum is σ = 73222574. Its totient is φ = 73222572.

The previous prime is 73222549. The next prime is 73222579. The reversal of 73222573 is 37522237.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73222249 + 324 = 8557^2 + 18^2 .

It is an emirp because it is prime and its reverse (37522237) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73222573 - 2¹³ = 73214381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73222579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36611286 + 36611287.

It is an arithmetic number, because the mean of its divisors is an integer number (36611287).

Almost surely, 2^73222573 is an apocalyptic number.

It is an amenable number.

73222573 is a deficient number, since it is larger than the sum of its proper divisors (1).

73222573 is an equidigital number, since it uses as much as digits as its factorization.

73222573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 31.

The square root of 73222573 is about 8557.0189318477. The cubic root of 73222573 is about 418.3582412256.

The spelling of 73222573 in words is "seventy-three million, two hundred twenty-two thousand, five hundred seventy-three".