52279756469 has 4 divisors (see below), whose sum is σ = 52282020396. Its totient is φ = 52277492544.

The previous prime is 52279756457. The next prime is 52279756471. The reversal of 52279756469 is 96465797225.

52279756469 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.

It can be written as a sum of positive squares in 2 ways, for example, as 4466248900 + 47813507569 = 66830^2 + 218663^2 .

It is a cyclic number.

It is not a de Polignac number, because 52279756469 - 2¹² = 52279752373 is a prime.

It is a super-2 number, since 2×52279756469² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52279756439) 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, 1096964 + ... + 1143629.

It is an arithmetic number, because the mean of its divisors is an integer number (13070505099).

Almost surely, 2^52279756469 is an apocalyptic number.

It is an amenable number.

52279756469 is a deficient number, since it is larger than the sum of its proper divisors (2263927).

52279756469 is a wasteful number, since it uses less digits than its factorization.

52279756469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2263926.

The product of its digits is 57153600, while the sum is 62.

The spelling of 52279756469 in words is "fifty-two billion, two hundred seventy-nine million, seven hundred fifty-six thousand, four hundred sixty-nine".