3241955581 has 4 divisors (see below), whose sum is σ = 3242882464. Its totient is φ = 3241028700.

The previous prime is 3241955557. The next prime is 3241955597. The reversal of 3241955581 is 1855591423.

3241955581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1855591423 = 7 ⋅265084489.

It is a cyclic number.

It is not a de Polignac number, because 3241955581 - 2³¹ = 1094471933 is a prime.

It is a super-2 number, since 2×3241955581² = 21020551978354095122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3241955531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458175 + ... + 465196.

It is an arithmetic number, because the mean of its divisors is an integer number (810720616).

Almost surely, 2^3241955581 is an apocalyptic number.

It is an amenable number.

3241955581 is a deficient number, since it is larger than the sum of its proper divisors (926883).

3241955581 is an equidigital number, since it uses as much as digits as its factorization.

3241955581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926882.

The product of its digits is 216000, while the sum is 43.

The square root of 3241955581 is about 56938.1733198388. The cubic root of 3241955581 is about 1480.0248932080.

The spelling of 3241955581 in words is "three billion, two hundred forty-one million, nine hundred fifty-five thousand, five hundred eighty-one".