52788998809 has 4 divisors (see below), whose sum is σ = 52803143716. Its totient is φ = 52774853904.

The previous prime is 52788998797. The next prime is 52788998813. The reversal of 52788998809 is 90889988725.

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 10775478025 + 42013520784 = 103805^2 + 204972^2 .

It is a cyclic number.

It is not a de Polignac number, because 52788998809 - 2¹⁹ = 52788474521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52788998819) 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, 7066854 + ... + 7074319.

It is an arithmetic number, because the mean of its divisors is an integer number (13200785929).

Almost surely, 2^52788998809 is an apocalyptic number.

It is an amenable number.

52788998809 is a deficient number, since it is larger than the sum of its proper divisors (14144907).

52788998809 is a wasteful number, since it uses less digits than its factorization.

52788998809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14144906.

The product of its (nonzero) digits is 209018880, while the sum is 73.

The spelling of 52788998809 in words is "fifty-two billion, seven hundred eighty-eight million, nine hundred ninety-eight thousand, eight hundred nine".