2605057 has 8 divisors (see below), whose sum is σ = 3206336. Its totient is φ = 2061072.

The previous prime is 2605039. The next prime is 2605073. The reversal of 2605057 is 7505062.

It is a happy number.

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

It is not a de Polignac number, because 2605057 - 2¹⁵ = 2572289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2605007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14223 + ... + 14404.

It is an arithmetic number, because the mean of its divisors is an integer number (400792).

It is a Proth number, since it is equal to 159 ⋅ 2¹⁴ + 1 and 159 < 2¹⁴.

2^2605057 is an apocalyptic number.

It is an amenable number.

2605057 is a deficient number, since it is larger than the sum of its proper divisors (601279).

2605057 is a wasteful number, since it uses less digits than its factorization.

2605057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28647.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 2605057 is about 1614.0188970393. The cubic root of 2605057 is about 137.5959792689.

The spelling of 2605057 in words is "two million, six hundred five thousand, fifty-seven".