73120550 has 36 divisors (see below), whose sum is σ = 143574516. Its totient is φ = 27702000.

The previous prime is 73120499. The next prime is 73120591. The reversal of 73120550 is 5502137.

It is a super-2 number, since 2×73120550² = 10693229664605000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 16025 + ... + 20075.

It is an arithmetic number, because the mean of its divisors is an integer number (3988181).

Almost surely, 2^73120550 is an apocalyptic number.

73120550 is a deficient number, since it is larger than the sum of its proper divisors (70453966).

73120550 is a wasteful number, since it uses less digits than its factorization.

73120550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4101 (or 4077 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 73120550 is about 8551.0554904058. The cubic root of 73120550 is about 418.1638476124.

Adding to 73120550 its reverse (5502137), we get a palindrome (78622687).

The spelling of 73120550 in words is "seventy-three million, one hundred twenty thousand, five hundred fifty".