53121211 has 32 divisors (see below), whose sum is σ = 65463552. Its totient is φ = 42456960.

The previous prime is 53121203. The next prime is 53121217. The reversal of 53121211 is 11212135.

53121211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53121211 - 2³ = 53121203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53121217) 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 31 ways as a sum of consecutive naturals, for example, 325816 + ... + 325978.

It is an arithmetic number, because the mean of its divisors is an integer number (2045736).

Almost surely, 2^53121211 is an apocalyptic number.

53121211 is a deficient number, since it is larger than the sum of its proper divisors (12342341).

53121211 is a wasteful number, since it uses less digits than its factorization.

53121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283.

The product of its digits is 60, while the sum is 16.

The square root of 53121211 is about 7288.4299406662. The cubic root of 53121211 is about 375.9147115857.

Adding to 53121211 its reverse (11212135), we get a palindrome (64333346).

The spelling of 53121211 in words is "fifty-three million, one hundred twenty-one thousand, two hundred eleven".