2056551101213 has 48 divisors (see below), whose sum is σ = 2565795585024. Its totient is φ = 1637646796800.

The previous prime is 2056551101207. The next prime is 2056551101239. The reversal of 2056551101213 is 3121011556502.

It is not a de Polignac number, because 2056551101213 - 2¹⁶ = 2056551035677 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2056551101213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2056551101203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 83023556 + ... + 83048322.

It is an arithmetic number, because the mean of its divisors is an integer number (53454074688).

Almost surely, 2^{2056551101213} is an apocalyptic number.

It is an amenable number.

2056551101213 is a deficient number, since it is larger than the sum of its proper divisors (509244483811).

2056551101213 is a wasteful number, since it uses less digits than its factorization.

2056551101213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26082 (or 26075 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 32.

Adding to 2056551101213 its reverse (3121011556502), we get a palindrome (5177562657715).

The spelling of 2056551101213 in words is "two trillion, fifty-six billion, five hundred fifty-one million, one hundred one thousand, two hundred thirteen".