2002003855 has 8 divisors (see below), whose sum is σ = 2427172272. Its totient is φ = 1585091328.

The previous prime is 2002003823. The next prime is 2002003873. The reversal of 2002003855 is 5583002002.

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

It is a cyclic number.

It is not a de Polignac number, because 2002003855 - 2⁵ = 2002003823 is a prime.

It is a super-2 number, since 2×2002003855² = 8016038870869722050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent 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, 2063437 + ... + 2064406.

It is an arithmetic number, because the mean of its divisors is an integer number (303396534).

Almost surely, 2^2002003855 is an apocalyptic number.

2002003855 is a deficient number, since it is larger than the sum of its proper divisors (425168417).

2002003855 is an equidigital number, since it uses as much as digits as its factorization.

2002003855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4127945.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2002003855 is about 44743.7577210498. The cubic root of 2002003855 is about 1260.3416926242.

Adding to 2002003855 its reverse (5583002002), we get a palindrome (7585005857).

The spelling of 2002003855 in words is "two billion, two million, three thousand, eight hundred fifty-five".