2020555542 has 16 divisors (see below), whose sum is σ = 4054906800. Its totient is φ = 671219232.

The previous prime is 2020555531. The next prime is 2020555549. The reversal of 2020555542 is 2455550202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020555549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 572917 + ... + 576432.

It is an arithmetic number, because the mean of its divisors is an integer number (253431675).

Almost surely, 2^2020555542 is an apocalyptic number.

2020555542 is an abundant number, since it is smaller than the sum of its proper divisors (2034351258).

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

2020555542 is a wasteful number, since it uses less digits than its factorization.

2020555542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149647.

The product of its (nonzero) digits is 20000, while the sum is 30.

The square root of 2020555542 is about 44950.5900072513. The cubic root of 2020555542 is about 1264.2227394650. Note that the first 3 decimals are identical.

The spelling of 2020555542 in words is "two billion, twenty million, five hundred fifty-five thousand, five hundred forty-two".