5043978505 has 4 divisors (see below), whose sum is σ = 6052774212. Its totient is φ = 4035182800.

The previous prime is 5043978493. The next prime is 5043978509. The reversal of 5043978505 is 5058793405.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2444610249 + 2599368256 = 49443^2 + 50984^2 .

It is not a de Polignac number, because 5043978505 - 2¹⁹ = 5043454217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5043978509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504397846 + ... + 504397855.

It is an arithmetic number, because the mean of its divisors is an integer number (1513193553).

Almost surely, 2^5043978505 is an apocalyptic number.

It is an amenable number.

5043978505 is a deficient number, since it is larger than the sum of its proper divisors (1008795707).

5043978505 is a wasteful number, since it uses less digits than its factorization.

5043978505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008795706.

The product of its (nonzero) digits is 756000, while the sum is 46.

The square root of 5043978505 is about 71020.9722898807. The cubic root of 5043978505 is about 1714.9747981122.

The spelling of 5043978505 in words is "five billion, forty-three million, nine hundred seventy-eight thousand, five hundred five".