3521057020 has 48 divisors (see below), whose sum is σ = 7970443488. Its totient is φ = 1298868480.

The previous prime is 3521057003. The next prime is 3521057039. The reversal of 3521057020 is 207501253.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301327 + ... + 312793.

It is an arithmetic number, because the mean of its divisors is an integer number (166050906).

Almost surely, 2^3521057020 is an apocalyptic number.

It is an amenable number.

3521057020 is an abundant number, since it is smaller than the sum of its proper divisors (4449386468).

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

3521057020 is a wasteful number, since it uses less digits than its factorization.

3521057020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12670 (or 12668 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 3521057020 is about 59338.4952623506. The cubic root of 3521057020 is about 1521.3332340966. Note that the first 3 decimals are identical.

Adding to 3521057020 its reverse (207501253), we get a palindrome (3728558273).

The spelling of 3521057020 in words is "three billion, five hundred twenty-one million, fifty-seven thousand, twenty".