52220771420369 has 4 divisors (see below), whose sum is σ = 52221387599460. Its totient is φ = 52220155241280.

The previous prime is 52220771420359. The next prime is 52220771420381. The reversal of 52220771420369 is 96302417702225.

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 22211049379600 + 30009722040769 = 4712860^2 + 5478113^2 .

It is a cyclic number.

It is not a de Polignac number, because 52220771420369 - 2⁸ = 52220771420113 is a prime.

It is a super-2 number, since 2×52220771420369² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52220771420359) 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, 307962404 + ... + 308131925.

It is an arithmetic number, because the mean of its divisors is an integer number (13055346899865).

Almost surely, 2^{52220771420369} is an apocalyptic number.

It is an amenable number.

52220771420369 is a deficient number, since it is larger than the sum of its proper divisors (616179091).

52220771420369 is an equidigital number, since it uses as much as digits as its factorization.

52220771420369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616179090.

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 52220771420369 in words is "fifty-two trillion, two hundred twenty billion, seven hundred seventy-one million, four hundred twenty thousand, three hundred sixty-nine".