73548521 has 2 divisors, whose sum is σ = 73548522. Its totient is φ = 73548520.

The previous prime is 73548499. The next prime is 73548539. The reversal of 73548521 is 12584537.

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., 71588521 + 1960000 = 8461^2 + 1400^2 .

It is a cyclic number.

It is not a de Polignac number, because 73548521 - 2²² = 69354217 is a prime.

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 (73548551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36774260 + 36774261.

It is an arithmetic number, because the mean of its divisors is an integer number (36774261).

Almost surely, 2^73548521 is an apocalyptic number.

It is an amenable number.

73548521 is a deficient number, since it is larger than the sum of its proper divisors (1).

73548521 is an equidigital number, since it uses as much as digits as its factorization.

73548521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33600, while the sum is 35.

The square root of 73548521 is about 8576.0434350579. The cubic root of 73548521 is about 418.9780919390.

The spelling of 73548521 in words is "seventy-three million, five hundred forty-eight thousand, five hundred twenty-one".