73581055 has 4 divisors (see below), whose sum is σ = 88297272. Its totient is φ = 58864840.

The previous prime is 73581029. The next prime is 73581059. The reversal of 73581055 is 55018537.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55018537 = 7 ⋅7859791.

It is not a de Polignac number, because 73581055 - 2⁵ = 73581023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73581055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73581059) 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, 7358101 + ... + 7358110.

It is an arithmetic number, because the mean of its divisors is an integer number (22074318).

Almost surely, 2^73581055 is an apocalyptic number.

73581055 is a deficient number, since it is larger than the sum of its proper divisors (14716217).

73581055 is a wasteful number, since it uses less digits than its factorization.

73581055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14716216.

The product of its (nonzero) digits is 21000, while the sum is 34.

The square root of 73581055 is about 8577.9400207742. The cubic root of 73581055 is about 419.0398607943.

The spelling of 73581055 in words is "seventy-three million, five hundred eighty-one thousand, fifty-five".