73056013 has 2 divisors, whose sum is σ = 73056014. Its totient is φ = 73056012.

The previous prime is 73055999. The next prime is 73056023. The reversal of 73056013 is 31065037.

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., 45198729 + 27857284 = 6723^2 + 5278^2 .

It is an emirp because it is prime and its reverse (31065037) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73056013 - 2¹⁷ = 72924941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73056023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36528006 + 36528007.

It is an arithmetic number, because the mean of its divisors is an integer number (36528007).

Almost surely, 2^73056013 is an apocalyptic number.

It is an amenable number.

73056013 is a deficient number, since it is larger than the sum of its proper divisors (1).

73056013 is an equidigital number, since it uses as much as digits as its factorization.

73056013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 73056013 is about 8547.2810296608. The cubic root of 73056013 is about 418.0407860662.

The spelling of 73056013 in words is "seventy-three million, fifty-six thousand, thirteen".