2020555623 has 32 divisors (see below), whose sum is σ = 2780490240. Its totient is φ = 1304634240.

The previous prime is 2020555619. The next prime is 2020555633. The reversal of 2020555623 is 3265550202.

It is not a de Polignac number, because 2020555623 - 2² = 2020555619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020555633) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7682590 + ... + 7682852.

It is an arithmetic number, because the mean of its divisors is an integer number (86890320).

Almost surely, 2^2020555623 is an apocalyptic number.

2020555623 is a deficient number, since it is larger than the sum of its proper divisors (759934617).

2020555623 is a wasteful number, since it uses less digits than its factorization.

2020555623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 2020555623 is about 44950.5909082406. The cubic root of 2020555623 is about 1264.2227563584. Note that the first 3 decimals are identical.

The spelling of 2020555623 in words is "two billion, twenty million, five hundred fifty-five thousand, six hundred twenty-three".