53322532321 has 4 divisors (see below), whose sum is σ = 53794413252. Its totient is φ = 52850651392.

The previous prime is 53322532309. The next prime is 53322532327. The reversal of 53322532321 is 12323522335.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12323522335 = 5 ⋅2464704467.

It can be written as a sum of positive squares in 2 ways, for example, as 5988438225 + 47334094096 = 77385^2 + 217564^2 .

It is a cyclic number.

It is not a de Polignac number, because 53322532321 - 2²¹ = 53320435169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53322532327) 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, 235940296 + ... + 235940521.

It is an arithmetic number, because the mean of its divisors is an integer number (13448603313).

Almost surely, 2^53322532321 is an apocalyptic number.

It is an amenable number.

53322532321 is a deficient number, since it is larger than the sum of its proper divisors (471880931).

53322532321 is a wasteful number, since it uses less digits than its factorization.

53322532321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471880930.

The product of its digits is 32400, while the sum is 31.

The spelling of 53322532321 in words is "fifty-three billion, three hundred twenty-two million, five hundred thirty-two thousand, three hundred twenty-one".