73552513 has 2 divisors, whose sum is σ = 73552514. Its totient is φ = 73552512.

The previous prime is 73552487. The next prime is 73552529. The reversal of 73552513 is 31525537.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38588944 + 34963569 = 6212^2 + 5913^2 .

It is an emirp because it is prime and its reverse (31525537) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73552513 - 2¹³ = 73544321 is a prime.

It is not a weakly prime, because it can be changed into another prime (73562513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36776256 + 36776257.

It is an arithmetic number, because the mean of its divisors is an integer number (36776257).

Almost surely, 2^73552513 is an apocalyptic number.

It is an amenable number.

73552513 is a deficient number, since it is larger than the sum of its proper divisors (1).

73552513 is an equidigital number, since it uses as much as digits as its factorization.

73552513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15750, while the sum is 31.

The square root of 73552513 is about 8576.2761732584. The cubic root of 73552513 is about 418.9856721063.

The spelling of 73552513 in words is "seventy-three million, five hundred fifty-two thousand, five hundred thirteen".