5139522785 has 8 divisors (see below), whose sum is σ = 6167938920. Its totient is φ = 4111277184.

The previous prime is 5139522749. The next prime is 5139522793. The reversal of 5139522785 is 5872259315.

It can be written as a sum of positive squares in 4 ways, for example, as 877522129 + 4262000656 = 29623^2 + 65284^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5139522785 - 2⁶ = 5139522721 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37301 + ... + 108029.

It is an arithmetic number, because the mean of its divisors is an integer number (770992365).

Almost surely, 2^5139522785 is an apocalyptic number.

It is an amenable number.

5139522785 is a deficient number, since it is larger than the sum of its proper divisors (1028416135).

5139522785 is a wasteful number, since it uses less digits than its factorization.

5139522785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85267.

The product of its digits is 756000, while the sum is 47.

The square root of 5139522785 is about 71690.4650912518. The cubic root of 5139522785 is about 1725.7356279950.

The spelling of 5139522785 in words is "five billion, one hundred thirty-nine million, five hundred twenty-two thousand, seven hundred eighty-five".