53900191 has 4 divisors (see below), whose sum is σ = 53932792. Its totient is φ = 53867592.

The previous prime is 53900177. The next prime is 53900213. The reversal of 53900191 is 19100935.

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 53900191 - 2⁵ = 53900159 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 (53900491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13680 + ... + 17173.

It is an arithmetic number, because the mean of its divisors is an integer number (13483198).

Almost surely, 2^53900191 is an apocalyptic number.

53900191 is a deficient number, since it is larger than the sum of its proper divisors (32601).

53900191 is a wasteful number, since it uses less digits than its factorization.

53900191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32600.

The product of its (nonzero) digits is 1215, while the sum is 28.

The square root of 53900191 is about 7341.6749451334. The cubic root of 53900191 is about 377.7432982725.

The spelling of 53900191 in words is "fifty-three million, nine hundred thousand, one hundred ninety-one".