53419891 has 8 divisors (see below), whose sum is σ = 61369184. Its totient is φ = 45550080.

The previous prime is 53419859. The next prime is 53419901. The reversal of 53419891 is 19891435.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53419891 - 2⁵ = 53419859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53419801) 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 7 ways as a sum of consecutive naturals, for example, 18420 + ... + 21121.

It is an arithmetic number, because the mean of its divisors is an integer number (7671148).

Almost surely, 2^53419891 is an apocalyptic number.

53419891 is a deficient number, since it is larger than the sum of its proper divisors (7949293).

53419891 is a wasteful number, since it uses less digits than its factorization.

53419891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39741.

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

The square root of 53419891 is about 7308.8912291811. The cubic root of 53419891 is about 376.6179361955.

The spelling of 53419891 in words is "fifty-three million, four hundred nineteen thousand, eight hundred ninety-one".