53351213 has 4 divisors (see below), whose sum is σ = 55190940. Its totient is φ = 51511488.

The previous prime is 53351201. The next prime is 53351239. The reversal of 53351213 is 31215335.

53351213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45131524 + 8219689 = 6718^2 + 2867^2 .

It is a cyclic number.

It is not a de Polignac number, because 53351213 - 2⁴ = 53351197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53351273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 919820 + ... + 919877.

It is an arithmetic number, because the mean of its divisors is an integer number (13797735).

Almost surely, 2^53351213 is an apocalyptic number.

It is an amenable number.

53351213 is a deficient number, since it is larger than the sum of its proper divisors (1839727).

53351213 is a wasteful number, since it uses less digits than its factorization.

53351213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839726.

The product of its digits is 1350, while the sum is 23.

The square root of 53351213 is about 7304.1914679176. The cubic root of 53351213 is about 376.4564703791.

Adding to 53351213 its reverse (31215335), we get a palindrome (84566548).

The spelling of 53351213 in words is "fifty-three million, three hundred fifty-one thousand, two hundred thirteen".