52406556644 has 24 divisors (see below), whose sum is σ = 98772537528. Its totient is φ = 24186090240.

The previous prime is 52406556641. The next prime is 52406556667. The reversal of 52406556644 is 44665560425.

It can be written as a sum of positive squares in 4 ways, for example, as 13424003044 + 38982553600 = 115862^2 + 197440^2 .

It is not an unprimeable number, because it can be changed into a prime (52406556641) 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 7 ways as a sum of consecutive naturals, for example, 1346384 + ... + 1384760.

It is an arithmetic number, because the mean of its divisors is an integer number (4115522397).

Almost surely, 2^52406556644 is an apocalyptic number.

It is an amenable number.

52406556644 is a deficient number, since it is larger than the sum of its proper divisors (46365980884).

52406556644 is a wasteful number, since it uses less digits than its factorization.

52406556644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64655 (or 64653 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 47.

The spelling of 52406556644 in words is "fifty-two billion, four hundred six million, five hundred fifty-six thousand, six hundred forty-four".