73322374553 has 2 divisors, whose sum is σ = 73322374554. Its totient is φ = 73322374552.

The previous prime is 73322374529. The next prime is 73322374561. The reversal of 73322374553 is 35547322337.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61947725449 + 11374649104 = 248893^2 + 106652^2 .

It is a cyclic number.

It is not a de Polignac number, because 73322374553 - 2²⁶ = 73255265689 is a prime.

It is a super-2 number, since 2×73322374553² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (73322374453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36661187276 + 36661187277.

It is an arithmetic number, because the mean of its divisors is an integer number (36661187277).

Almost surely, 2^73322374553 is an apocalyptic number.

It is an amenable number.

73322374553 is a deficient number, since it is larger than the sum of its proper divisors (1).

73322374553 is an equidigital number, since it uses as much as digits as its factorization.

73322374553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1587600, while the sum is 44.

The spelling of 73322374553 in words is "seventy-three billion, three hundred twenty-two million, three hundred seventy-four thousand, five hundred fifty-three".