2056894590 has 64 divisors (see below), whose sum is σ = 5201936640. Its totient is φ = 519079680.

The previous prime is 2056894589. The next prime is 2056894621. The reversal of 2056894590 is 954986502.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 894322 + ... + 896618.

It is an arithmetic number, because the mean of its divisors is an integer number (81280260).

Almost surely, 2^2056894590 is an apocalyptic number.

2056894590 is an abundant number, since it is smaller than the sum of its proper divisors (3145042050).

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

2056894590 is a wasteful number, since it uses less digits than its factorization.

2056894590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3897.

The product of its (nonzero) digits is 777600, while the sum is 48.

The square root of 2056894590 is about 45352.9997905320. Note that the first 3 decimals coincide. The cubic root of 2056894590 is about 1271.7566345949.

The spelling of 2056894590 in words is "two billion, fifty-six million, eight hundred ninety-four thousand, five hundred ninety".