52110431321621 has 8 divisors (see below), whose sum is σ = 55297731101760. Its totient is φ = 48999933945952.

The previous prime is 52110431321581. The next prime is 52110431321639. The reversal of 52110431321621 is 12612313401125.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52110431321621 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 (52110431321651) 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, 19200599720 + ... + 19200602433.

It is an arithmetic number, because the mean of its divisors is an integer number (6912216387720).

Almost surely, 2^{52110431321621} is an apocalyptic number.

It is an amenable number.

52110431321621 is a deficient number, since it is larger than the sum of its proper divisors (3187299780139).

52110431321621 is a wasteful number, since it uses less digits than its factorization.

52110431321621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38401202235.

The product of its (nonzero) digits is 8640, while the sum is 32.

Adding to 52110431321621 its reverse (12612313401125), we get a palindrome (64722744722746).

The spelling of 52110431321621 in words is "fifty-two trillion, one hundred ten billion, four hundred thirty-one million, three hundred twenty-one thousand, six hundred twenty-one".