72201355 has 4 divisors (see below), whose sum is σ = 86641632. Its totient is φ = 57761080.

The previous prime is 72201299. The next prime is 72201383. The reversal of 72201355 is 55310227.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 72201355 - 2¹¹ = 72199307 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7220131 + ... + 7220140.

It is an arithmetic number, because the mean of its divisors is an integer number (21660408).

Almost surely, 2^72201355 is an apocalyptic number.

72201355 is a deficient number, since it is larger than the sum of its proper divisors (14440277).

72201355 is a wasteful number, since it uses less digits than its factorization.

72201355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14440276.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 72201355 is about 8497.1380476017. The cubic root of 72201355 is about 416.4042140972.

The spelling of 72201355 in words is "seventy-two million, two hundred one thousand, three hundred fifty-five".