53357443 has 4 divisors (see below), whose sum is σ = 53440560. Its totient is φ = 53274328.

The previous prime is 53357429. The next prime is 53357449. The reversal of 53357443 is 34475335.

53357443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53357443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53357399 and 53357408.

It is not an unprimeable number, because it can be changed into a prime (53357449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40588 + ... + 41881.

It is an arithmetic number, because the mean of its divisors is an integer number (13360140).

Almost surely, 2^53357443 is an apocalyptic number.

53357443 is a deficient number, since it is larger than the sum of its proper divisors (83117).

53357443 is an equidigital number, since it uses as much as digits as its factorization.

53357443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83116.

The product of its digits is 75600, while the sum is 34.

The square root of 53357443 is about 7304.6179229307. The cubic root of 53357443 is about 376.4711231701.

The spelling of 53357443 in words is "fifty-three million, three hundred fifty-seven thousand, four hundred forty-three".