2050405555 has 8 divisors (see below), whose sum is σ = 2684167344. Its totient is φ = 1491204000.

The previous prime is 2050405519. The next prime is 2050405571. The reversal of 2050405555 is 5555040502.

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

It is not a de Polignac number, because 2050405555 - 2²⁹ = 1513534643 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, 18639996 + ... + 18640105.

It is an arithmetic number, because the mean of its divisors is an integer number (335520918).

Almost surely, 2^2050405555 is an apocalyptic number.

2050405555 is a deficient number, since it is larger than the sum of its proper divisors (633761789).

2050405555 is a wasteful number, since it uses less digits than its factorization.

2050405555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37280117.

The product of its (nonzero) digits is 25000, while the sum is 31.

The square root of 2050405555 is about 45281.4040749622. The cubic root of 2050405555 is about 1270.4178580364.

The spelling of 2050405555 in words is "two billion, fifty million, four hundred five thousand, five hundred fifty-five".