52346213321 has 6 divisors (see below), whose sum is σ = 55246280922. Its totient is φ = 49591149120.

The previous prime is 52346213303. The next prime is 52346213333. The reversal of 52346213321 is 12331264325.

It can be written as a sum of positive squares in only one way, i.e., 26606503225 + 25739710096 = 163115^2 + 160436^2 .

It is not a de Polignac number, because 52346213321 - 2²² = 52342019017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52346213021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72501320 + ... + 72502041.

It is an arithmetic number, because the mean of its divisors is an integer number (9207713487).

Almost surely, 2^52346213321 is an apocalyptic number.

It is an amenable number.

52346213321 is a deficient number, since it is larger than the sum of its proper divisors (2900067601).

52346213321 is a wasteful number, since it uses less digits than its factorization.

52346213321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145003399 (or 145003380 counting only the distinct ones).

The product of its digits is 25920, while the sum is 32.

Adding to 52346213321 its reverse (12331264325), we get a palindrome (64677477646).

The spelling of 52346213321 in words is "fifty-two billion, three hundred forty-six million, two hundred thirteen thousand, three hundred twenty-one".