53322121 has 4 divisors (see below), whose sum is σ = 53339652. Its totient is φ = 53304592.

The previous prime is 53322091. The next prime is 53322127. The reversal of 53322121 is 12122335.

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 15327225 + 37994896 = 3915^2 + 6164^2 .

It is a cyclic number.

It is not a de Polignac number, because 53322121 - 2⁵ = 53322089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53322127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2890 + ... + 10723.

It is an arithmetic number, because the mean of its divisors is an integer number (13334913).

Almost surely, 2^53322121 is an apocalyptic number.

It is an amenable number.

53322121 is a deficient number, since it is larger than the sum of its proper divisors (17531).

53322121 is a wasteful number, since it uses less digits than its factorization.

53322121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17530.

The product of its digits is 360, while the sum is 19.

The square root of 53322121 is about 7302.1997370655. The cubic root of 53322121 is about 376.3880316796.

Adding to 53322121 its reverse (12122335), we get a palindrome (65444456).

The spelling of 53322121 in words is "fifty-three million, three hundred twenty-two thousand, one hundred twenty-one".