2006775556 has 6 divisors (see below), whose sum is σ = 3511857230. Its totient is φ = 1003387776.

The previous prime is 2006775527. The next prime is 2006775559. The reversal of 2006775556 is 6555776002.

It can be written as a sum of positive squares in only one way, i.e., 1032336900 + 974438656 = 32130^2 + 31216^2 .

It is not an unprimeable number, because it can be changed into a prime (2006775559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250846941 + ... + 250846948.

Almost surely, 2^2006775556 is an apocalyptic number.

It is an amenable number.

2006775556 is a deficient number, since it is larger than the sum of its proper divisors (1505081674).

2006775556 is a wasteful number, since it uses less digits than its factorization.

2006775556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501693893 (or 501693891 counting only the distinct ones).

The product of its (nonzero) digits is 441000, while the sum is 43.

The square root of 2006775556 is about 44797.0485188478. The cubic root of 2006775556 is about 1261.3422238320.

The spelling of 2006775556 in words is "two billion, six million, seven hundred seventy-five thousand, five hundred fifty-six".