52247405021 has 8 divisors (see below), whose sum is σ = 60529283904. Its totient is φ = 44170017120.

The previous prime is 52247405017. The next prime is 52247405029. The reversal of 52247405021 is 12050474225.

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 52247405021 - 2² = 52247405017 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 (52247405029) 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, 51122195 + ... + 51123216.

It is an arithmetic number, because the mean of its divisors is an integer number (7566160488).

Almost surely, 2^52247405021 is an apocalyptic number.

It is an amenable number.

52247405021 is a deficient number, since it is larger than the sum of its proper divisors (8281878883).

52247405021 is a wasteful number, since it uses less digits than its factorization.

52247405021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102245491.

The product of its (nonzero) digits is 22400, while the sum is 32.

Adding to 52247405021 its reverse (12050474225), we get a palindrome (64297879246).

The spelling of 52247405021 in words is "fifty-two billion, two hundred forty-seven million, four hundred five thousand, twenty-one".