3508525620 has 144 divisors (see below), whose sum is σ = 11320440768. Its totient is φ = 876518400.

The previous prime is 3508525597. The next prime is 3508525649. The reversal of 3508525620 is 265258053.

It is a happy number.

3508525620 is a `hidden beast` number, since 3 + 5 + 0 + 8 + 5 + 25 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 692095 + ... + 697145.

It is an arithmetic number, because the mean of its divisors is an integer number (78614172).

Almost surely, 2^3508525620 is an apocalyptic number.

3508525620 is a gapful number since it is divisible by the number (30) 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 3508525620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5660220384).

3508525620 is an abundant number, since it is smaller than the sum of its proper divisors (7811915148).

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

3508525620 is a wasteful number, since it uses less digits than its factorization.

3508525620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5310 (or 5305 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 3508525620 is about 59232.8086452095. The cubic root of 3508525620 is about 1519.5262864759.

The spelling of 3508525620 in words is "three billion, five hundred eight million, five hundred twenty-five thousand, six hundred twenty".