52085072258 has 6 divisors (see below), whose sum is σ = 78128092521. Its totient is φ = 26042374752.

The previous prime is 52085072219. The next prime is 52085072329. The reversal of 52085072258 is 85227058025.

It can be written as a sum of positive squares in 2 ways, for example, as 32210557729 + 19874514529 = 179473^2 + 140977^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=161377.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 242066 + ... + 403442.

Almost surely, 2^52085072258 is an apocalyptic number.

52085072258 is a deficient number, since it is larger than the sum of its proper divisors (26043020263).

52085072258 is an frugal number, since it uses more digits than its factorization.

52085072258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322756 (or 161379 counting only the distinct ones).

The product of its (nonzero) digits is 448000, while the sum is 44.

The spelling of 52085072258 in words is "fifty-two billion, eighty-five million, seventy-two thousand, two hundred fifty-eight".