73052905 has 4 divisors (see below), whose sum is σ = 87663492. Its totient is φ = 58442320.

The previous prime is 73052897. The next prime is 73052909. The reversal of 73052905 is 50925037.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29387241 + 43665664 = 5421^2 + 6608^2 .

It is not a de Polignac number, because 73052905 - 2³ = 73052897 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73052909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7305286 + ... + 7305295.

It is an arithmetic number, because the mean of its divisors is an integer number (21915873).

Almost surely, 2^73052905 is an apocalyptic number.

It is an amenable number.

73052905 is a deficient number, since it is larger than the sum of its proper divisors (14610587).

73052905 is a wasteful number, since it uses less digits than its factorization.

73052905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14610586.

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 73052905 is about 8547.0992155234. The cubic root of 73052905 is about 418.0348577876.

It can be divided in two parts, 730 and 52905, that added together give a palindrome (53635).

The spelling of 73052905 in words is "seventy-three million, fifty-two thousand, nine hundred five".