3220505015 has 16 divisors (see below), whose sum is σ = 4756438848. Its totient is φ = 2038473216.

The previous prime is 3220504993. The next prime is 3220505021. The reversal of 3220505015 is 5105050223.

It is not a de Polignac number, because 3220505015 - 2²⁸ = 2952069559 is a prime.

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, 3538562 + ... + 3539471.

It is an arithmetic number, because the mean of its divisors is an integer number (297277428).

Almost surely, 2^3220505015 is an apocalyptic number.

3220505015 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3220505015 is a deficient number, since it is larger than the sum of its proper divisors (1535933833).

3220505015 is a wasteful number, since it uses less digits than its factorization.

3220505015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7078058.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 3220505015 is about 56749.4935219690. The cubic root of 3220505015 is about 1476.7534470337.

Adding to 3220505015 its reverse (5105050223), we get a palindrome (8325555238).

The spelling of 3220505015 in words is "three billion, two hundred twenty million, five hundred five thousand, fifteen".