73295581 has 2 divisors, whose sum is σ = 73295582. Its totient is φ = 73295580.

The previous prime is 73295569. The next prime is 73295591. The reversal of 73295581 is 18559237.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69056100 + 4239481 = 8310^2 + 2059^2 .

It is a cyclic number.

It is not a de Polignac number, because 73295581 - 2²³ = 64906973 is a prime.

It is a super-2 number, since 2×73295581² = 10744484388255122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73295531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36647790 + 36647791.

It is an arithmetic number, because the mean of its divisors is an integer number (36647791).

Almost surely, 2^73295581 is an apocalyptic number.

It is an amenable number.

73295581 is a deficient number, since it is larger than the sum of its proper divisors (1).

73295581 is an equidigital number, since it uses as much as digits as its factorization.

73295581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 40.

The square root of 73295581 is about 8561.2838406398. The cubic root of 73295581 is about 418.4972391307.

The spelling of 73295581 in words is "seventy-three million, two hundred ninety-five thousand, five hundred eighty-one".