53082660721 has 8 divisors (see below), whose sum is σ = 53147152800. Its totient is φ = 53018203680.

The previous prime is 53082660689. The next prime is 53082660727. The reversal of 53082660721 is 12706628035.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53082660721 - 2⁵ = 53082660689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53082660727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4137765 + ... + 4150573.

It is an arithmetic number, because the mean of its divisors is an integer number (6643394100).

Almost surely, 2^53082660721 is an apocalyptic number.

It is an amenable number.

53082660721 is a deficient number, since it is larger than the sum of its proper divisors (64492079).

53082660721 is a wasteful number, since it uses less digits than its factorization.

53082660721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17519.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 53082660721 in words is "fifty-three billion, eighty-two million, six hundred sixty thousand, seven hundred twenty-one".