52120262321 has 4 divisors (see below), whose sum is σ = 52898176752. Its totient is φ = 51342347892.

The previous prime is 52120262317. The next prime is 52120262347. The reversal of 52120262321 is 12326202125.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52120262321 - 2² = 52120262317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52120562321) 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, 388957115 + ... + 388957248.

It is an arithmetic number, because the mean of its divisors is an integer number (13224544188).

Almost surely, 2^52120262321 is an apocalyptic number.

It is an amenable number.

52120262321 is a deficient number, since it is larger than the sum of its proper divisors (777914431).

52120262321 is an equidigital number, since it uses as much as digits as its factorization.

52120262321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777914430.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 52120262321 its reverse (12326202125), we get a palindrome (64446464446).

The spelling of 52120262321 in words is "fifty-two billion, one hundred twenty million, two hundred sixty-two thousand, three hundred twenty-one".