53141221 has 4 divisors (see below), whose sum is σ = 60732832. Its totient is φ = 45549612.

The previous prime is 53141197. The next prime is 53141239. The reversal of 53141221 is 12214135.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12214135 = 5 ⋅2442827.

It is a cyclic number.

It is not a de Polignac number, because 53141221 - 2⁵ = 53141189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53141321) 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, 3795795 + ... + 3795808.

It is an arithmetic number, because the mean of its divisors is an integer number (15183208).

Almost surely, 2^53141221 is an apocalyptic number.

It is an amenable number.

53141221 is a deficient number, since it is larger than the sum of its proper divisors (7591611).

53141221 is an equidigital number, since it uses as much as digits as its factorization.

53141221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7591610.

The product of its digits is 240, while the sum is 19.

The square root of 53141221 is about 7289.8025350485. The cubic root of 53141221 is about 375.9619062245.

Adding to 53141221 its reverse (12214135), we get a palindrome (65355356).

The spelling of 53141221 in words is "fifty-three million, one hundred forty-one thousand, two hundred twenty-one".