72554180 has 24 divisors (see below), whose sum is σ = 152535768. Its totient is φ = 28988928.

The previous prime is 72554173. The next prime is 72554227. The reversal of 72554180 is 8145527.

It can be written as a sum of positive squares in 4 ways, for example, as 38167684 + 34386496 = 6178^2 + 5864^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 24542 + ... + 27338.

It is an arithmetic number, because the mean of its divisors is an integer number (6355657).

Almost surely, 2^72554180 is an apocalyptic number.

It is an amenable number.

72554180 is an abundant number, since it is smaller than the sum of its proper divisors (79981588).

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

72554180 is a wasteful number, since it uses less digits than its factorization.

72554180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4103 (or 4101 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 72554180 is about 8517.8741479315. The cubic root of 72554180 is about 417.0813904509.

The spelling of 72554180 in words is "seventy-two million, five hundred fifty-four thousand, one hundred eighty".