53489191 has 16 divisors (see below), whose sum is σ = 67544064. Its totient is φ = 41272704.

The previous prime is 53489179. The next prime is 53489197. The reversal of 53489191 is 19198435.

It is a cyclic number.

It is not a de Polignac number, because 53489191 - 2⁵ = 53489159 is a prime.

It is a super-2 number, since 2×53489191² = 5722187107668962, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53489197) 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, 7035 + ... + 12508.

It is an arithmetic number, because the mean of its divisors is an integer number (4221504).

Almost surely, 2^53489191 is an apocalyptic number.

53489191 is a deficient number, since it is larger than the sum of its proper divisors (14054873).

53489191 is a wasteful number, since it uses less digits than its factorization.

53489191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19590.

The product of its digits is 38880, while the sum is 40.

The square root of 53489191 is about 7313.6304938109. The cubic root of 53489191 is about 376.7807241542.

The spelling of 53489191 in words is "fifty-three million, four hundred eighty-nine thousand, one hundred ninety-one".