539135520 has 384 divisors, whose sum is σ = 2194698240. Its totient is φ = 107950080.

The previous prime is 539135503. The next prime is 539135551. The reversal of 539135520 is 25531935.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1071589 + ... + 1072091.

It is an arithmetic number, because the mean of its divisors is an integer number (5715360).

Almost surely, 2^539135520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 539135520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1097349120).

539135520 is an abundant number, since it is smaller than the sum of its proper divisors (1655562720).

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

539135520 is a wasteful number, since it uses less digits than its factorization.

539135520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 20250, while the sum is 33.

The square root of 539135520 is about 23219.2919788696. The cubic root of 539135520 is about 813.8905047841.

The spelling of 539135520 in words is "five hundred thirty-nine million, one hundred thirty-five thousand, five hundred twenty".