52319470721 has 4 divisors (see below), whose sum is σ = 59793680832. Its totient is φ = 44845260612.

The previous prime is 52319470717. The next prime is 52319470771. The reversal of 52319470721 is 12707491325.

It is a happy number.

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 52319470721 - 2² = 52319470717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52319470771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3737105045 + ... + 3737105058.

It is an arithmetic number, because the mean of its divisors is an integer number (14948420208).

Almost surely, 2^52319470721 is an apocalyptic number.

It is an amenable number.

52319470721 is a deficient number, since it is larger than the sum of its proper divisors (7474210111).

52319470721 is an equidigital number, since it uses as much as digits as its factorization.

52319470721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7474210110.

The product of its (nonzero) digits is 105840, while the sum is 41.

The spelling of 52319470721 in words is "fifty-two billion, three hundred nineteen million, four hundred seventy thousand, seven hundred twenty-one".