2656020203 has 4 divisors (see below), whose sum is σ = 2795810760. Its totient is φ = 2516229648.

The previous prime is 2656020193. The next prime is 2656020223. The reversal of 2656020203 is 3020206562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3020206562 = 2 ⋅1510103281.

It is a cyclic number.

It is not a de Polignac number, because 2656020203 - 2²⁴ = 2639242987 is a prime.

It is a super-2 number, since 2×2656020203² = 14108886637488322418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2656020223) 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, 69895250 + ... + 69895287.

It is an arithmetic number, because the mean of its divisors is an integer number (698952690).

Almost surely, 2^2656020203 is an apocalyptic number.

2656020203 is a deficient number, since it is larger than the sum of its proper divisors (139790557).

2656020203 is a wasteful number, since it uses less digits than its factorization.

2656020203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139790556.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 2656020203 is about 51536.5909136412. The cubic root of 2656020203 is about 1384.8746258809.

Adding to 2656020203 its reverse (3020206562), we get a palindrome (5676226765).

The spelling of 2656020203 in words is "two billion, six hundred fifty-six million, twenty thousand, two hundred three".