2031555894 has 8 divisors (see below), whose sum is σ = 4063111800. Its totient is φ = 677185296.

The previous prime is 2031555887. The next prime is 2031555899. The reversal of 2031555894 is 4985551302.

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

2031555894 is an admirable number.

It is a super-2 number, since 2×2031555894² = 8254438700892278472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031555899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169296319 + ... + 169296330.

It is an arithmetic number, because the mean of its divisors is an integer number (507888975).

Almost surely, 2^2031555894 is an apocalyptic number.

2031555894 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2031555894 is a wasteful number, since it uses less digits than its factorization.

2031555894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338592654.

The product of its (nonzero) digits is 216000, while the sum is 42.

The square root of 2031555894 is about 45072.7844047824. The cubic root of 2031555894 is about 1266.5128247909.

The spelling of 2031555894 in words is "two billion, thirty-one million, five hundred fifty-five thousand, eight hundred ninety-four".