2571049 has 4 divisors (see below), whose sum is σ = 2768836. Its totient is φ = 2373264.

The previous prime is 2571031. The next prime is 2571059. The reversal of 2571049 is 9401752.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1345600 + 1225449 = 1160^2 + 1107^2 .

It is a cyclic number.

It is not a de Polignac number, because 2571049 - 2⁵ = 2571017 is a prime.

It is a super-2 number, since 2×2571049² = 13220585920802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2571059) 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, 98874 + ... + 98899.

It is an arithmetic number, because the mean of its divisors is an integer number (692209).

2^2571049 is an apocalyptic number.

It is an amenable number.

2571049 is a deficient number, since it is larger than the sum of its proper divisors (197787).

2571049 is a wasteful number, since it uses less digits than its factorization.

2571049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197786.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 2571049 is about 1603.4490949201. The cubic root of 2571049 is about 136.9946008137.

The spelling of 2571049 in words is "two million, five hundred seventy-one thousand, forty-nine".