52640273705 has 4 divisors (see below), whose sum is σ = 63168328452. Its totient is φ = 42112218960.

The previous prime is 52640273701. The next prime is 52640273717. The reversal of 52640273705 is 50737204625.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21417737104 + 31222536601 = 146348^2 + 176699^2 .

It is not a de Polignac number, because 52640273705 - 2² = 52640273701 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52640273701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5264027366 + ... + 5264027375.

It is an arithmetic number, because the mean of its divisors is an integer number (15792082113).

Almost surely, 2^52640273705 is an apocalyptic number.

It is an amenable number.

52640273705 is a deficient number, since it is larger than the sum of its proper divisors (10528054747).

52640273705 is a wasteful number, since it uses less digits than its factorization.

52640273705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10528054746.

The product of its (nonzero) digits is 352800, while the sum is 41.

The spelling of 52640273705 in words is "fifty-two billion, six hundred forty million, two hundred seventy-three thousand, seven hundred five".