2656530331 has 16 divisors (see below), whose sum is σ = 3293113600. Its totient is φ = 2086738848.

The previous prime is 2656530319. The next prime is 2656530377. The reversal of 2656530331 is 1330356562.

It is a cyclic number.

It is not a de Polignac number, because 2656530331 - 2⁵ = 2656530299 is a prime.

It is a super-2 number, since 2×2656530331² = 14114306799045939122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2656530031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92361 + ... + 117658.

It is an arithmetic number, because the mean of its divisors is an integer number (205819600).

Almost surely, 2^2656530331 is an apocalyptic number.

2656530331 is a deficient number, since it is larger than the sum of its proper divisors (636583269).

2656530331 is a wasteful number, since it uses less digits than its factorization.

2656530331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210178.

The product of its (nonzero) digits is 48600, while the sum is 34.

The square root of 2656530331 is about 51541.5398586422. The cubic root of 2656530331 is about 1384.9632820964.

Adding to 2656530331 its reverse (1330356562), we get a palindrome (3986886893).

The spelling of 2656530331 in words is "two billion, six hundred fifty-six million, five hundred thirty thousand, three hundred thirty-one".