5122385821 has 24 divisors (see below), whose sum is σ = 6479815104. Its totient is φ = 3952629120.

The previous prime is 5122385767. The next prime is 5122385839. The reversal of 5122385821 is 1285832215.

It is not a de Polignac number, because 5122385821 - 2⁹ = 5122385309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5122389821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22266 + ... + 103636.

It is an arithmetic number, because the mean of its divisors is an integer number (269992296).

Almost surely, 2^5122385821 is an apocalyptic number.

It is an amenable number.

5122385821 is a deficient number, since it is larger than the sum of its proper divisors (1357429283).

5122385821 is a wasteful number, since it uses less digits than its factorization.

5122385821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81441 (or 81418 counting only the distinct ones).

The product of its digits is 38400, while the sum is 37.

The square root of 5122385821 is about 71570.8447693612. The cubic root of 5122385821 is about 1723.8154237619.

The spelling of 5122385821 in words is "five billion, one hundred twenty-two million, three hundred eighty-five thousand, eight hundred twenty-one".