539881650 has 144 divisors (see below), whose sum is σ = 1808509248. Its totient is φ = 112176000.

The previous prime is 539881649. The next prime is 539881651. The reversal of 539881650 is 56188935.

It is an interprime number because it is at equal distance from previous prime (539881649) and next prime (539881651).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 539881596 and 539881605.

It is not an unprimeable number, because it can be changed into a prime (539881651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 26860 + ... + 42440.

It is an arithmetic number, because the mean of its divisors is an integer number (12559092).

Almost surely, 2^539881650 is an apocalyptic number.

539881650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 539881650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (904254624).

539881650 is an abundant number, since it is smaller than the sum of its proper divisors (1268627598).

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

539881650 is a wasteful number, since it uses less digits than its factorization.

539881650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15617 (or 15609 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 539881650 is about 23235.3534511528. The cubic root of 539881650 is about 814.2657896457.

The spelling of 539881650 in words is "five hundred thirty-nine million, eight hundred eighty-one thousand, six hundred fifty".