52730652601661 has 4 divisors (see below), whose sum is σ = 52921015968732. Its totient is φ = 52540289234592.

The previous prime is 52730652601643. The next prime is 52730652601721. The reversal of 52730652601661 is 16610625603725.

It is a happy number.

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 30459747331225 + 22270905270436 = 5519035^2 + 4719206^2 .

It is a cyclic number.

It is not a de Polignac number, because 52730652601661 - 2⁶ = 52730652601597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52730622601661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95181683120 + ... + 95181683673.

It is an arithmetic number, because the mean of its divisors is an integer number (13230253992183).

Almost surely, 2^{52730652601661} is an apocalyptic number.

It is an amenable number.

52730652601661 is a deficient number, since it is larger than the sum of its proper divisors (190363367071).

52730652601661 is a wasteful number, since it uses less digits than its factorization.

52730652601661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190363367070.

The product of its (nonzero) digits is 2721600, while the sum is 50.

The spelling of 52730652601661 in words is "fifty-two trillion, seven hundred thirty billion, six hundred fifty-two million, six hundred one thousand, six hundred sixty-one".