2055550401 has 12 divisors (see below), whose sum is σ = 2984051200. Its totient is φ = 1363479480.

The previous prime is 2055550391. The next prime is 2055550433. The reversal of 2055550401 is 1040555502.

2055550401 is a `hidden beast` number, since 20 + 55 + 550 + 40 + 1 = 666.

It is not a de Polignac number, because 2055550401 - 2⁵ = 2055550369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2055550451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 572065 + ... + 575646.

Almost surely, 2^2055550401 is an apocalyptic number.

It is an amenable number.

2055550401 is a deficient number, since it is larger than the sum of its proper divisors (928500799).

2055550401 is a wasteful number, since it uses less digits than its factorization.

2055550401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147916 (or 1147913 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 2055550401 is about 45338.1781835133. The cubic root of 2055550401 is about 1271.4795415105.

The spelling of 2055550401 in words is "two billion, fifty-five million, five hundred fifty thousand, four hundred one".