2155555006 has 16 divisors (see below), whose sum is σ = 3559636080. Its totient is φ = 970807680.

The previous prime is 2155554979. The next prime is 2155555013. The reversal of 2155555006 is 6005555512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 447051 + ... + 451846.

It is an arithmetic number, because the mean of its divisors is an integer number (222477255).

Almost surely, 2^2155555006 is an apocalyptic number.

2155555006 is a deficient number, since it is larger than the sum of its proper divisors (1404081074).

2155555006 is a wasteful number, since it uses less digits than its factorization.

2155555006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899019.

The product of its (nonzero) digits is 37500, while the sum is 34.

The square root of 2155555006 is about 46427.9550055783. The cubic root of 2155555006 is about 1291.7734968143.

The spelling of 2155555006 in words is "two billion, one hundred fifty-five million, five hundred fifty-five thousand, six".