52388355791 has 4 divisors (see below), whose sum is σ = 54078302784. Its totient is φ = 50698408800.

The previous prime is 52388355781. The next prime is 52388355821. The reversal of 52388355791 is 19755388325.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52388355791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52388355751) 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, 844973450 + ... + 844973511.

It is an arithmetic number, because the mean of its divisors is an integer number (13519575696).

Almost surely, 2^52388355791 is an apocalyptic number.

52388355791 is a deficient number, since it is larger than the sum of its proper divisors (1689946993).

52388355791 is a wasteful number, since it uses less digits than its factorization.

52388355791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1689946992.

The product of its digits is 9072000, while the sum is 56.

The spelling of 52388355791 in words is "fifty-two billion, three hundred eighty-eight million, three hundred fifty-five thousand, seven hundred ninety-one".