3539581056 has 288 divisors, whose sum is σ = 11392726800. Its totient is φ = 1053803520.

The previous prime is 3539581043. The next prime is 3539581069. The reversal of 3539581056 is 6501859353.

3539581056 is a `hidden beast` number, since 3 + 539 + 5 + 8 + 105 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (3539581043) and next prime (3539581069).

It is a tau number, because it is divible by the number of its divisors (288).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9339075 + ... + 9339453.

Almost surely, 2^3539581056 is an apocalyptic number.

3539581056 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3539581056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5696363400).

3539581056 is an abundant number, since it is smaller than the sum of its proper divisors (7853145744).

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

3539581056 is a wasteful number, since it uses less digits than its factorization.

3539581056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488 (or 462 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 45.

The square root of 3539581056 is about 59494.3783562783. The cubic root of 3539581056 is about 1523.9964453179.

The spelling of 3539581056 in words is "three billion, five hundred thirty-nine million, five hundred eighty-one thousand, fifty-six".