53422231 has 2 divisors, whose sum is σ = 53422232. Its totient is φ = 53422230.

The previous prime is 53422217. The next prime is 53422277. The reversal of 53422231 is 13222435.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53422231 - 2¹¹ = 53420183 is a prime.

It is a super-2 number, since 2×53422231² = 5707869530034722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53420231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26711115 + 26711116.

It is an arithmetic number, because the mean of its divisors is an integer number (26711116).

Almost surely, 2^53422231 is an apocalyptic number.

53422231 is a deficient number, since it is larger than the sum of its proper divisors (1).

53422231 is an equidigital number, since it uses as much as digits as its factorization.

53422231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 22.

The square root of 53422231 is about 7309.0513064282. The cubic root of 53422231 is about 376.6234352277.

Adding to 53422231 its reverse (13222435), we get a palindrome (66644666).

The spelling of 53422231 in words is "fifty-three million, four hundred twenty-two thousand, two hundred thirty-one".