73540505 has 4 divisors (see below), whose sum is σ = 88248612. Its totient is φ = 58832400.

The previous prime is 73540501. The next prime is 73540517. The reversal of 73540505 is 50504537.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50504537 = 5189 ⋅9733.

It can be written as a sum of positive squares in 2 ways, for example, as 13756681 + 59783824 = 3709^2 + 7732^2 .

It is not a de Polignac number, because 73540505 - 2² = 73540501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73540501) 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 in 3 ways as a sum of consecutive naturals, for example, 7354046 + ... + 7354055.

It is an arithmetic number, because the mean of its divisors is an integer number (22062153).

Almost surely, 2^73540505 is an apocalyptic number.

It is an amenable number.

73540505 is a deficient number, since it is larger than the sum of its proper divisors (14708107).

73540505 is a wasteful number, since it uses less digits than its factorization.

73540505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14708106.

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 73540505 is about 8575.5760739440. The cubic root of 73540505 is about 418.9628700131.

The spelling of 73540505 in words is "seventy-three million, five hundred forty thousand, five hundred five".