5521843 has 4 divisors (see below), whose sum is σ = 5671120. Its totient is φ = 5372568.

The previous prime is 5521819. The next prime is 5521891. The reversal of 5521843 is 3481255.

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-5521843 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5521543) 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, 74583 + ... + 74656.

It is an arithmetic number, because the mean of its divisors is an integer number (1417780).

Almost surely, 2^5521843 is an apocalyptic number.

5521843 is a deficient number, since it is larger than the sum of its proper divisors (149277).

5521843 is a wasteful number, since it uses less digits than its factorization.

5521843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149276.

The product of its digits is 4800, while the sum is 28.

The square root of 5521843 is about 2349.8602086082. The cubic root of 5521843 is about 176.7507850669.

The spelling of 5521843 in words is "five million, five hundred twenty-one thousand, eight hundred forty-three".