2055857 has 4 divisors (see below), whose sum is σ = 2164080. Its totient is φ = 1947636.

The previous prime is 2055853. The next prime is 2055917. The reversal of 2055857 is 7585502.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2055857 - 2² = 2055853 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2055853) 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, 54083 + ... + 54120.

It is an arithmetic number, because the mean of its divisors is an integer number (541020).

2^2055857 is an apocalyptic number.

It is an amenable number.

2055857 is a deficient number, since it is larger than the sum of its proper divisors (108223).

2055857 is a wasteful number, since it uses less digits than its factorization.

2055857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108222.

The product of its (nonzero) digits is 14000, while the sum is 32.

The square root of 2055857 is about 1433.8260006012. The cubic root of 2055857 is about 127.1542754908.

The spelling of 2055857 in words is "two million, fifty-five thousand, eight hundred fifty-seven".