52777721307 has 6 divisors (see below), whose sum is σ = 70370825628. Its totient is φ = 35184882264.

The previous prime is 52777721299. The next prime is 52777721369. The reversal of 52777721307 is 70312777725.

It is not a de Polignac number, because 52777721307 - 2³ = 52777721299 is a prime.

It is a super-3 number, since 3×52777721307³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (52777721387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 331593 + ... + 464229.

It is an arithmetic number, because the mean of its divisors is an integer number (11728470938).

Almost surely, 2^52777721307 is an apocalyptic number.

52777721307 is a deficient number, since it is larger than the sum of its proper divisors (17593104321).

52777721307 is an frugal number, since it uses more digits than its factorization.

52777721307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265277 (or 132640 counting only the distinct ones).

The product of its (nonzero) digits is 1008420, while the sum is 48.

Multiplying 52777721307 by its sum of digits (48), we get a square (2533330622736 = 1591644²).

The spelling of 52777721307 in words is "fifty-two billion, seven hundred seventy-seven million, seven hundred twenty-one thousand, three hundred seven".