5043521566 has 4 divisors (see below), whose sum is σ = 7565282352. Its totient is φ = 2521760782.

The previous prime is 5043521551. The next prime is 5043521569. The reversal of 5043521566 is 6651253405.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5043521569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260880390 + ... + 1260880393.

It is an arithmetic number, because the mean of its divisors is an integer number (1891320588).

Almost surely, 2^5043521566 is an apocalyptic number.

5043521566 is a deficient number, since it is larger than the sum of its proper divisors (2521760786).

5043521566 is a wasteful number, since it uses less digits than its factorization.

5043521566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2521760785.

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 5043521566 is about 71017.7552869703. The cubic root of 5043521566 is about 1714.9230094607.

The spelling of 5043521566 in words is "five billion, forty-three million, five hundred twenty-one thousand, five hundred sixty-six".