53349191 has 8 divisors (see below), whose sum is σ = 62215200. Its totient is φ = 45727584.

The previous prime is 53349151. The next prime is 53349193. The reversal of 53349191 is 19194335.

53349191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-53349191 is a prime.

It is a super-2 number, since 2×53349191² = 5692272360708962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53349193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77426 + ... + 78111.

It is an arithmetic number, because the mean of its divisors is an integer number (7776900).

Almost surely, 2^53349191 is an apocalyptic number.

53349191 is a deficient number, since it is larger than the sum of its proper divisors (8866009).

53349191 is an equidigital number, since it uses as much as digits as its factorization.

53349191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155558 (or 155544 counting only the distinct ones).

The product of its digits is 14580, while the sum is 35.

The square root of 53349191 is about 7304.0530529289. The cubic root of 53349191 is about 376.4517144447.

The spelling of 53349191 in words is "fifty-three million, three hundred forty-nine thousand, one hundred ninety-one".