822556488601 has 3 divisors (see below), whose sum is σ = 822557395551. Its totient is φ = 822555581652.

The previous prime is 822556488569. The next prime is 822556488623. The reversal of 822556488601 is 106884655228.

The square root of 822556488601 is 906949.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 772818568201 + 49737920400 = 879101^2 + 223020^2 .

It is not a de Polignac number, because 822556488601 - 2⁵ = 822556488569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (822556488671) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 453475 + ... + 1360423.

It is an arithmetic number, because the mean of its divisors is an integer number (274185798517).

Almost surely, 2^822556488601 is an apocalyptic number.

822556488601 is the 906949-th square number.

822556488601 is the 453475-th centered octagonal number.

It is an amenable number.

822556488601 is a deficient number, since it is larger than the sum of its proper divisors (906950).

822556488601 is an frugal number, since it uses more digits than its factorization.

822556488601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1813898 (or 906949 counting only the distinct ones).

The product of its (nonzero) digits is 7372800, while the sum is 55.

The spelling of 822556488601 in words is "eight hundred twenty-two billion, five hundred fifty-six million, four hundred eighty-eight thousand, six hundred one".