2061959555 has 8 divisors (see below), whose sum is σ = 2499860832. Its totient is φ = 1632561408.

The previous prime is 2061959539. The next prime is 2061959567. The reversal of 2061959555 is 5559591602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2061959555 - 2⁴ = 2061959539 is a prime.

It is a Duffinian 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, 2125247 + ... + 2126216.

It is an arithmetic number, because the mean of its divisors is an integer number (312482604).

Almost surely, 2^2061959555 is an apocalyptic number.

2061959555 is a deficient number, since it is larger than the sum of its proper divisors (437901277).

2061959555 is an equidigital number, since it uses as much as digits as its factorization.

2061959555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4251565.

The product of its (nonzero) digits is 607500, while the sum is 47.

The square root of 2061959555 is about 45408.8048180086. The cubic root of 2061959555 is about 1272.7996507548.

The spelling of 2061959555 in words is "two billion, sixty-one million, nine hundred fifty-nine thousand, five hundred fifty-five".