43217053 has 4 divisors (see below), whose sum is σ = 47145888. Its totient is φ = 39288220.

The previous prime is 43217033. The next prime is 43217063. The reversal of 43217053 is 35071234.

43217053 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43217053 - 2¹³ = 43208861 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 (43217033) 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, 1964401 + ... + 1964422.

It is an arithmetic number, because the mean of its divisors is an integer number (11786472).

Almost surely, 2^43217053 is an apocalyptic number.

It is an amenable number.

43217053 is a deficient number, since it is larger than the sum of its proper divisors (3928835).

43217053 is a wasteful number, since it uses less digits than its factorization.

43217053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3928834.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 43217053 is about 6573.9678277278. The cubic root of 43217053 is about 350.9282922104.

Adding to 43217053 its reverse (35071234), we get a palindrome (78288287).

The spelling of 43217053 in words is "forty-three million, two hundred seventeen thousand, fifty-three".