73555000 has 80 divisors (see below), whose sum is σ = 176568480. Its totient is φ = 28704000.

The previous prime is 73554973. The next prime is 73555007. The reversal of 73555000 is 55537.

It is a happy number.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73555007) 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 19 ways as a sum of consecutive naturals, for example, 234844 + ... + 235156.

It is an arithmetic number, because the mean of its divisors is an integer number (2207106).

Almost surely, 2^73555000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73555000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88284240).

73555000 is an abundant number, since it is smaller than the sum of its proper divisors (103013480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73555000 is a wasteful number, since it uses less digits than its factorization.

73555000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 2625, while the sum is 25.

The square root of 73555000 is about 8576.4211650315. The cubic root of 73555000 is about 418.9903943815.

The spelling of 73555000 in words is "seventy-three million, five hundred fifty-five thousand".