72033571 has 2 divisors, whose sum is σ = 72033572. Its totient is φ = 72033570.

The previous prime is 72033527. The next prime is 72033589. The reversal of 72033571 is 17533027.

It is a strong prime.

It is an emirp because it is prime and its reverse (17533027) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72033571 - 2²³ = 63644963 is a prime.

It is not a weakly prime, because it can be changed into another prime (72033271) 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 as a sum of consecutive naturals, namely, 36016785 + 36016786.

It is an arithmetic number, because the mean of its divisors is an integer number (36016786).

Almost surely, 2^72033571 is an apocalyptic number.

72033571 is a deficient number, since it is larger than the sum of its proper divisors (1).

72033571 is an equidigital number, since it uses as much as digits as its factorization.

72033571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 72033571 is about 8487.2593338486. The cubic root of 72033571 is about 416.0814124286.

Adding to 72033571 its reverse (17533027), we get a palindrome (89566598).

The spelling of 72033571 in words is "seventy-two million, thirty-three thousand, five hundred seventy-one".