73260521 has 2 divisors, whose sum is σ = 73260522. Its totient is φ = 73260520.

The previous prime is 73260479. The next prime is 73260527. The reversal of 73260521 is 12506237.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51768025 + 21492496 = 7195^2 + 4636^2 .

It is a cyclic number.

It is not a de Polignac number, because 73260521 - 2¹⁴ = 73244137 is a prime.

It is not a weakly prime, because it can be changed into another prime (73260527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36630260 + 36630261.

It is an arithmetic number, because the mean of its divisors is an integer number (36630261).

Almost surely, 2^73260521 is an apocalyptic number.

It is an amenable number.

73260521 is a deficient number, since it is larger than the sum of its proper divisors (1).

73260521 is an equidigital number, since it uses as much as digits as its factorization.

73260521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 73260521 is about 8559.2360056257. The cubic root of 73260521 is about 418.4305008950.

Adding to 73260521 its reverse (12506237), we get a palindrome (85766758).

The spelling of 73260521 in words is "seventy-three million, two hundred sixty thousand, five hundred twenty-one".