53968591 has 16 divisors (see below), whose sum is σ = 58978368. Its totient is φ = 49190400.

The previous prime is 53968573. The next prime is 53968609. The reversal of 53968591 is 19586935.

It is an interprime number because it is at equal distance from previous prime (53968573) and next prime (53968609).

It is not a de Polignac number, because 53968591 - 2⁵ = 53968559 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 (53968571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73261 + ... + 73993.

It is an arithmetic number, because the mean of its divisors is an integer number (3686148).

Almost surely, 2^53968591 is an apocalyptic number.

53968591 is a deficient number, since it is larger than the sum of its proper divisors (5009777).

53968591 is a wasteful number, since it uses less digits than its factorization.

53968591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882.

The product of its digits is 291600, while the sum is 46.

The square root of 53968591 is about 7346.3318057382. The cubic root of 53968591 is about 377.9030176810.

The spelling of 53968591 in words is "fifty-three million, nine hundred sixty-eight thousand, five hundred ninety-one".