2057765 has 16 divisors (see below), whose sum is σ = 2680128. Its totient is φ = 1510656.

The previous prime is 2057761. The next prime is 2057777. The reversal of 2057765 is 5677502.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2057765 - 2² = 2057761 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2057761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3374 + ... + 3936.

It is an arithmetic number, because the mean of its divisors is an integer number (167508).

2^2057765 is an apocalyptic number.

It is an amenable number.

2057765 is a deficient number, since it is larger than the sum of its proper divisors (622363).

2057765 is a wasteful number, since it uses less digits than its factorization.

2057765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 2057765 is about 1434.4911989971. The cubic root of 2057765 is about 127.1935997795.

The spelling of 2057765 in words is "two million, fifty-seven thousand, seven hundred sixty-five".