722445533 has 4 divisors (see below), whose sum is σ = 723431868. Its totient is φ = 721459200.

The previous prime is 722445487. The next prime is 722445539. The reversal of 722445533 is 335544227.

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

It can be written as a sum of positive squares in 2 ways, for example, as 694164409 + 28281124 = 26347^2 + 5318^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-722445533 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 722445493 and 722445502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722445539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 492068 + ... + 493533.

It is an arithmetic number, because the mean of its divisors is an integer number (180857967).

Almost surely, 2^722445533 is an apocalyptic number.

It is an amenable number.

722445533 is a deficient number, since it is larger than the sum of its proper divisors (986335).

722445533 is an equidigital number, since it uses as much as digits as its factorization.

722445533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986334.

The product of its digits is 100800, while the sum is 35.

The square root of 722445533 is about 26878.3469171748. The cubic root of 722445533 is about 897.2945639774.

It can be divided in two parts, 72244 and 5533, that added together give a palindrome (77777).

The spelling of 722445533 in words is "seven hundred twenty-two million, four hundred forty-five thousand, five hundred thirty-three".