2051106556 has 6 divisors (see below), whose sum is σ = 3589436480. Its totient is φ = 1025553276.

The previous prime is 2051106509. The next prime is 2051106557. The reversal of 2051106556 is 6556011502.

It is a super-2 number, since 2×2051106556² = 8414076208132362272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051106557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256388316 + ... + 256388323.

Almost surely, 2^2051106556 is an apocalyptic number.

It is an amenable number.

2051106556 is a deficient number, since it is larger than the sum of its proper divisors (1538329924).

2051106556 is a wasteful number, since it uses less digits than its factorization.

2051106556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512776643 (or 512776641 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 2051106556 is about 45289.1439088884. The cubic root of 2051106556 is about 1270.5626200838.

The spelling of 2051106556 in words is "two billion, fifty-one million, one hundred six thousand, five hundred fifty-six".