72554943 has 8 divisors (see below), whose sum is σ = 97964800. Its totient is φ = 47757528.

The previous prime is 72554941. The next prime is 72554947. The reversal of 72554943 is 34945527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72554943 - 2¹ = 72554941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72554941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152833 + ... + 153306.

It is an arithmetic number, because the mean of its divisors is an integer number (12245600).

Almost surely, 2^72554943 is an apocalyptic number.

72554943 is a deficient number, since it is larger than the sum of its proper divisors (25409857).

72554943 is a wasteful number, since it uses less digits than its factorization.

72554943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306221.

The product of its digits is 151200, while the sum is 39.

The square root of 72554943 is about 8517.9189359843. The cubic root of 72554943 is about 417.0828524938.

The spelling of 72554943 in words is "seventy-two million, five hundred fifty-four thousand, nine hundred forty-three".