53121125 has 16 divisors (see below), whose sum is σ = 67843776. Its totient is φ = 41504400.

The previous prime is 53121109. The next prime is 53121143. The reversal of 53121125 is 52112135.

It is a happy number.

It is not a de Polignac number, because 53121125 - 2⁴ = 53121109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53121097 and 53121106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 434 + ... + 10316.

It is an arithmetic number, because the mean of its divisors is an integer number (4240236).

Almost surely, 2^53121125 is an apocalyptic number.

It is an amenable number.

53121125 is a deficient number, since it is larger than the sum of its proper divisors (14722651).

53121125 is an equidigital number, since it uses as much as digits as its factorization.

53121125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9941 (or 9931 counting only the distinct ones).

The product of its digits is 300, while the sum is 20.

The square root of 53121125 is about 7288.4240409021. The cubic root of 53121125 is about 375.9145087246.

The spelling of 53121125 in words is "fifty-three million, one hundred twenty-one thousand, one hundred twenty-five".