53031121 has 16 divisors (see below), whose sum is σ = 62536320. Its totient is φ = 44334720.

The previous prime is 53031113. The next prime is 53031127. The reversal of 53031121 is 12113035.

It is a cyclic number.

It is not a de Polignac number, because 53031121 - 2³ = 53031113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53031095 and 53031104.

It is not an unprimeable number, because it can be changed into a prime (53031127) by changing a digit.

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, 50821 + ... + 51853.

It is an arithmetic number, because the mean of its divisors is an integer number (3908520).

Almost surely, 2^53031121 is an apocalyptic number.

It is an amenable number.

53031121 is a deficient number, since it is larger than the sum of its proper divisors (9505199).

53031121 is a wasteful number, since it uses less digits than its factorization.

53031121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 53031121 is about 7282.2469746638. The cubic root of 53031121 is about 375.7020826521.

Adding to 53031121 its reverse (12113035), we get a palindrome (65144156).

The spelling of 53031121 in words is "fifty-three million, thirty-one thousand, one hundred twenty-one".