52517775644 has 6 divisors (see below), whose sum is σ = 91906107384. Its totient is φ = 26258887820.

The previous prime is 52517775643. The next prime is 52517775647. The reversal of 52517775644 is 44657771525.

It is a super-2 number, since 2×52517775644² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52517775641) 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 as a sum of consecutive naturals, namely, 6564721952 + ... + 6564721959.

It is an arithmetic number, because the mean of its divisors is an integer number (15317684564).

Almost surely, 2^52517775644 is an apocalyptic number.

It is an amenable number.

52517775644 is a deficient number, since it is larger than the sum of its proper divisors (39388331740).

52517775644 is a wasteful number, since it uses less digits than its factorization.

52517775644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13129443915 (or 13129443913 counting only the distinct ones).

The product of its digits is 8232000, while the sum is 53.

The spelling of 52517775644 in words is "fifty-two billion, five hundred seventeen million, seven hundred seventy-five thousand, six hundred forty-four".