53345791 has 4 divisors (see below), whose sum is σ = 53376232. Its totient is φ = 53315352.

The previous prime is 53345771. The next prime is 53345801. The reversal of 53345791 is 19754335.

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 53345791 - 2¹¹ = 53343743 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53345791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53345701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12420 + ... + 16153.

It is an arithmetic number, because the mean of its divisors is an integer number (13344058).

Almost surely, 2^53345791 is an apocalyptic number.

53345791 is a deficient number, since it is larger than the sum of its proper divisors (30441).

53345791 is a wasteful number, since it uses less digits than its factorization.

53345791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30440.

The product of its digits is 56700, while the sum is 37.

The square root of 53345791 is about 7303.8203017325. The cubic root of 53345791 is about 376.4437170537.

The spelling of 53345791 in words is "fifty-three million, three hundred forty-five thousand, seven hundred ninety-one".