53553211 has 4 divisors (see below), whose sum is σ = 53626032. Its totient is φ = 53480392.

The previous prime is 53553197. The next prime is 53553217. The reversal of 53553211 is 11235535.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53553211 - 2⁷ = 53553083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53553217) 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, 35296 + ... + 36781.

It is an arithmetic number, because the mean of its divisors is an integer number (13406508).

Almost surely, 2^53553211 is an apocalyptic number.

53553211 is a deficient number, since it is larger than the sum of its proper divisors (72821).

53553211 is an equidigital number, since it uses as much as digits as its factorization.

53553211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72820.

The product of its digits is 2250, while the sum is 25.

The square root of 53553211 is about 7318.0059442446. The cubic root of 53553211 is about 376.9309843245.

Adding to 53553211 its reverse (11235535), we get a palindrome (64788746).

The spelling of 53553211 in words is "fifty-three million, five hundred fifty-three thousand, two hundred eleven".