52113321 has 16 divisors (see below), whose sum is σ = 83144320. Its totient is φ = 32069520.

The previous prime is 52113283. The next prime is 52113323. The reversal of 52113321 is 12331125.

It is not a de Polignac number, because 52113321 - 2¹³ = 52105129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52113294 and 52113303.

It is not an unprimeable number, because it can be changed into a prime (52113323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73885 + ... + 74586.

It is an arithmetic number, because the mean of its divisors is an integer number (5196520).

Almost surely, 2^52113321 is an apocalyptic number.

It is an amenable number.

52113321 is a deficient number, since it is larger than the sum of its proper divisors (31030999).

52113321 is a wasteful number, since it uses less digits than its factorization.

52113321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148493 (or 148487 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 52113321 is about 7218.9556723947. The cubic root of 52113321 is about 373.5220547935.

Adding to 52113321 its reverse (12331125), we get a palindrome (64444446).

The spelling of 52113321 in words is "fifty-two million, one hundred thirteen thousand, three hundred twenty-one".