53491219 has 2 divisors, whose sum is σ = 53491220. Its totient is φ = 53491218.

The previous prime is 53491189. The next prime is 53491237. The reversal of 53491219 is 91219435.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53491219 - 2¹¹ = 53489171 is a prime.

It is a super-2 number, since 2×53491219² = 5722621020211922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53491279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26745609 + 26745610.

It is an arithmetic number, because the mean of its divisors is an integer number (26745610).

Almost surely, 2^53491219 is an apocalyptic number.

53491219 is a deficient number, since it is larger than the sum of its proper divisors (1).

53491219 is an equidigital number, since it uses as much as digits as its factorization.

53491219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 34.

The square root of 53491219 is about 7313.7691377292. The cubic root of 53491219 is about 376.7854858742.

The spelling of 53491219 in words is "fifty-three million, four hundred ninety-one thousand, two hundred nineteen".