53424121 has 2 divisors, whose sum is σ = 53424122. Its totient is φ = 53424120.

The previous prime is 53424089. The next prime is 53424139. The reversal of 53424121 is 12142435.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51681721 + 1742400 = 7189^2 + 1320^2 .

It is a cyclic number.

It is not a de Polignac number, because 53424121 - 2⁵ = 53424089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53424092 and 53424101.

It is not a weakly prime, because it can be changed into another prime (53424221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26712060 + 26712061.

It is an arithmetic number, because the mean of its divisors is an integer number (26712061).

Almost surely, 2^53424121 is an apocalyptic number.

It is an amenable number.

53424121 is a deficient number, since it is larger than the sum of its proper divisors (1).

53424121 is an equidigital number, since it uses as much as digits as its factorization.

53424121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 22.

The square root of 53424121 is about 7309.1805970300. The cubic root of 53424121 is about 376.6278766365.

Adding to 53424121 its reverse (12142435), we get a palindrome (65566556).

The spelling of 53424121 in words is "fifty-three million, four hundred twenty-four thousand, one hundred twenty-one".