722955553 has 4 divisors (see below), whose sum is σ = 723407040. Its totient is φ = 722504068.

The previous prime is 722955533. The next prime is 722955577. The reversal of 722955553 is 355559227.

722955553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 722955553 - 2¹⁷ = 722824481 is a prime.

It is a super-2 number, since 2×722955553² = 1045329463227071618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (722955533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223333 + ... + 226546.

It is an arithmetic number, because the mean of its divisors is an integer number (180851760).

Almost surely, 2^722955553 is an apocalyptic number.

It is an amenable number.

722955553 is a deficient number, since it is larger than the sum of its proper divisors (451487).

722955553 is a wasteful number, since it uses less digits than its factorization.

722955553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451486.

The product of its digits is 472500, while the sum is 43.

The square root of 722955553 is about 26887.8328059366. The cubic root of 722955553 is about 897.5056666386.

The spelling of 722955553 in words is "seven hundred twenty-two million, nine hundred fifty-five thousand, five hundred fifty-three".