83052778057 has 4 divisors (see below), whose sum is σ = 83090174596. Its totient is φ = 83015381520.

The previous prime is 83052778051. The next prime is 83052778117. The reversal of 83052778057 is 75087725038.

It is a happy number.

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 52377357321 + 30675420736 = 228861^2 + 175144^2 .

It is a cyclic number.

It is not a de Polignac number, because 83052778057 - 2³¹ = 80905294409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83052777995 and 83052778013.

It is not an unprimeable number, because it can be changed into a prime (83052778051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18694938 + ... + 18699379.

It is an arithmetic number, because the mean of its divisors is an integer number (20772543649).

Almost surely, 2^83052778057 is an apocalyptic number.

It is an amenable number.

83052778057 is a deficient number, since it is larger than the sum of its proper divisors (37396539).

83052778057 is a wasteful number, since it uses less digits than its factorization.

83052778057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37396538.

The product of its (nonzero) digits is 3292800, while the sum is 52.

The spelling of 83052778057 in words is "eighty-three billion, fifty-two million, seven hundred seventy-eight thousand, fifty-seven".