3522261561 has 96 divisors (see below), whose sum is σ = 6197280768. Its totient is φ = 1760330880.

The previous prime is 3522261539. The next prime is 3522261563. The reversal of 3522261561 is 1651622253.

It is not a de Polignac number, because 3522261561 - 2¹¹ = 3522259513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3522261563) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 5581716 + ... + 5582346.

It is an arithmetic number, because the mean of its divisors is an integer number (64555008).

Almost surely, 2^3522261561 is an apocalyptic number.

It is an amenable number.

3522261561 is a deficient number, since it is larger than the sum of its proper divisors (2675019207).

3522261561 is a wasteful number, since it uses less digits than its factorization.

3522261561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811 (or 804 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 3522261561 is about 59348.6441378403. The cubic root of 3522261561 is about 1521.5066952021.

The spelling of 3522261561 in words is "three billion, five hundred twenty-two million, two hundred sixty-one thousand, five hundred sixty-one".