1554020055 has 36 divisors (see below), whose sum is σ = 3133416312. Its totient is φ = 710408160.

The previous prime is 1554020033. The next prime is 1554020059. The reversal of 1554020055 is 5500204551.

It is not a de Polignac number, because 1554020055 - 2¹⁰ = 1554019031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1554020059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 350181 + ... + 354590.

It is an arithmetic number, because the mean of its divisors is an integer number (87039342).

Almost surely, 2^1554020055 is an apocalyptic number.

1554020055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1554020055 is an abundant number, since it is smaller than the sum of its proper divisors (1579396257).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1554020055 is a wasteful number, since it uses less digits than its factorization.

1554020055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704796 (or 704786 counting only the distinct ones).

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

The square root of 1554020055 is about 39421.0610587792. The cubic root of 1554020055 is about 1158.2941770085.

The spelling of 1554020055 in words is "one billion, five hundred fifty-four million, twenty thousand, fifty-five".