3521355061 has 12 divisors (see below), whose sum is σ = 4337228268. Its totient is φ = 2840756352.

The previous prime is 3521355049. The next prime is 3521355109. The reversal of 3521355061 is 1605531253.

It can be written as a sum of positive squares in 2 ways, for example, as 1113490161 + 2407864900 = 33369^2 + 49070^2 .

It is not a de Polignac number, because 3521355061 - 2⁷ = 3521354933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3521350061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2112826 + ... + 2114491.

It is an arithmetic number, because the mean of its divisors is an integer number (361435689).

Almost surely, 2^3521355061 is an apocalyptic number.

It is an amenable number.

3521355061 is a deficient number, since it is larger than the sum of its proper divisors (815873207).

3521355061 is a wasteful number, since it uses less digits than its factorization.

3521355061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4227348 (or 4227341 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 3521355061 is about 59341.0065721841. The cubic root of 3521355061 is about 1521.3761574652.

The spelling of 3521355061 in words is "three billion, five hundred twenty-one million, three hundred fifty-five thousand, sixty-one".