2055816 has 48 divisors (see below), whose sum is σ = 6364800. Its totient is φ = 587232.

The previous prime is 2055769. The next prime is 2055821. The reversal of 2055816 is 6185502.

It is a self number, because there is not a number n which added to its sum of digits gives 2055816.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1536 + ... + 2543.

It is an arithmetic number, because the mean of its divisors is an integer number (132600).

2^2055816 is an apocalyptic number.

It is an amenable number.

2055816 is an abundant number, since it is smaller than the sum of its proper divisors (4308984).

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

2055816 is a wasteful number, since it uses less digits than its factorization.

2055816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4098 (or 4091 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 2055816 is about 1433.8117031186. The cubic root of 2055816 is about 127.1534302051.

The spelling of 2055816 in words is "two million, fifty-five thousand, eight hundred sixteen".