73205565255 has 12 divisors (see below), whose sum is σ = 126889646520. Its totient is φ = 39042968112.

The previous prime is 73205565241. The next prime is 73205565283. The reversal of 73205565255 is 55256550237.

73205565255 is a `hidden beast` number, since 7 + 32 + 0 + 5 + 565 + 2 + 55 = 666.

It is not a de Polignac number, because 73205565255 - 2¹⁸ = 73205303111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1626790339 = 73205565255 / (7 + 3 + 2 + 0 + 5 + 5 + 6 + 5 + 2 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 73205565255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 813395125 + ... + 813395214.

It is an arithmetic number, because the mean of its divisors is an integer number (10574137210).

Almost surely, 2^73205565255 is an apocalyptic number.

73205565255 is a deficient number, since it is larger than the sum of its proper divisors (53684081265).

73205565255 is a wasteful number, since it uses less digits than its factorization.

73205565255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626790350 (or 1626790347 counting only the distinct ones).

The product of its (nonzero) digits is 1575000, while the sum is 45.

The spelling of 73205565255 in words is "seventy-three billion, two hundred five million, five hundred sixty-five thousand, two hundred fifty-five".