73007505 has 24 divisors (see below), whose sum is σ = 127024872. Its totient is φ = 38790144.

The previous prime is 73007419. The next prime is 73007509. The reversal of 73007505 is 50570037.

It can be written as a sum of positive squares in 4 ways, for example, as 12027024 + 60980481 = 3468^2 + 7809^2 .

It is not a de Polignac number, because 73007505 - 2⁷ = 73007377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73007509) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9537 + ... + 15393.

It is an arithmetic number, because the mean of its divisors is an integer number (5292703).

Almost surely, 2^73007505 is an apocalyptic number.

It is an amenable number.

73007505 is a deficient number, since it is larger than the sum of its proper divisors (54017367).

73007505 is a wasteful number, since it uses less digits than its factorization.

73007505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6145 (or 6142 counting only the distinct ones).

The product of its (nonzero) digits is 3675, while the sum is 27.

The square root of 73007505 is about 8544.4429309347. The cubic root of 73007505 is about 417.9482414947.

The spelling of 73007505 in words is "seventy-three million, seven thousand, five hundred five".