539517820 has 12 divisors (see below), whose sum is σ = 1132987464. Its totient is φ = 215807120.

The previous prime is 539517751. The next prime is 539517829. The reversal of 539517820 is 28715935.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539517829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13487926 + ... + 13487965.

It is an arithmetic number, because the mean of its divisors is an integer number (94415622).

Almost surely, 2^539517820 is an apocalyptic number.

It is an amenable number.

539517820 is an abundant number, since it is smaller than the sum of its proper divisors (593469644).

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

539517820 is a wasteful number, since it uses less digits than its factorization.

539517820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26975900 (or 26975898 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 539517820 is about 23227.5228984926. The cubic root of 539517820 is about 814.0828354146.

The spelling of 539517820 in words is "five hundred thirty-nine million, five hundred seventeen thousand, eight hundred twenty".