53211191 has 16 divisors (see below), whose sum is σ = 62415360. Its totient is φ = 44844480.

The previous prime is 53211181. The next prime is 53211203. The reversal of 53211191 is 19111235.

It is a cyclic number.

It is not a de Polignac number, because 53211191 - 2¹⁸ = 52949047 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 (53211131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7115 + ... + 12531.

It is an arithmetic number, because the mean of its divisors is an integer number (3900960).

Almost surely, 2^53211191 is an apocalyptic number.

53211191 is a deficient number, since it is larger than the sum of its proper divisors (9204169).

53211191 is a wasteful number, since it uses less digits than its factorization.

53211191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5494.

The product of its digits is 270, while the sum is 23.

The square root of 53211191 is about 7294.6001261207. The cubic root of 53211191 is about 376.1268410715.

The spelling of 53211191 in words is "fifty-three million, two hundred eleven thousand, one hundred ninety-one".