52540166673 has 20 divisors (see below), whose sum is σ = 78557606820. Its totient is φ = 34994788992.

The previous prime is 52540166621. The next prime is 52540166677. The reversal of 52540166673 is 37666104525.

It can be written as a sum of positive squares in 2 ways, for example, as 32946606144 + 19593560529 = 181512^2 + 139977^2 .

It is not a de Polignac number, because 52540166673 - 2²² = 52535972369 is a prime.

It is a super-2 number, since 2×52540166673² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52540166677) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 206788 + ... + 384501.

It is an arithmetic number, because the mean of its divisors is an integer number (3927880341).

Almost surely, 2^52540166673 is an apocalyptic number.

It is an amenable number.

52540166673 is a deficient number, since it is larger than the sum of its proper divisors (26017440147).

52540166673 is a wasteful number, since it uses less digits than its factorization.

52540166673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592398 (or 592389 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The spelling of 52540166673 in words is "fifty-two billion, five hundred forty million, one hundred sixty-six thousand, six hundred seventy-three".