5217959820 has 24 divisors (see below), whose sum is σ = 14610287664. Its totient is φ = 1391455936.

The previous prime is 5217959801. The next prime is 5217959827. The reversal of 5217959820 is 289597125.

It is a self number, because there is not a number n which added to its sum of digits gives 5217959820.

It is not an unprimeable number, because it can be changed into a prime (5217959827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43482939 + ... + 43483058.

It is an arithmetic number, because the mean of its divisors is an integer number (608761986).

Almost surely, 2^5217959820 is an apocalyptic number.

It is an amenable number.

5217959820 is an abundant number, since it is smaller than the sum of its proper divisors (9392327844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5217959820 is a wasteful number, since it uses less digits than its factorization.

5217959820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86966009 (or 86966007 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 48.

The square root of 5217959820 is about 72235.4471156648. The cubic root of 5217959820 is about 1734.4704698879.

The spelling of 5217959820 in words is "five billion, two hundred seventeen million, nine hundred fifty-nine thousand, eight hundred twenty".