3261007056 has 40 divisors (see below), whose sum is σ = 8696022784. Its totient is φ = 1051937280.

The previous prime is 3261007033. The next prime is 3261007093. The reversal of 3261007056 is 6507001623.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1094281 + ... + 1097256.

Almost surely, 2^3261007056 is an apocalyptic number.

It is an amenable number.

3261007056 is an abundant number, since it is smaller than the sum of its proper divisors (5435015728).

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

3261007056 is a wasteful number, since it uses less digits than its factorization.

3261007056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2191579 (or 2191573 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 3261007056 is about 57105.2279217936. The cubic root of 3261007056 is about 1482.9183735224.

Adding to 3261007056 its reverse (6507001623), we get a palindrome (9768008679).

The spelling of 3261007056 in words is "three billion, two hundred sixty-one million, seven thousand, fifty-six".