2570005 has 4 divisors (see below), whose sum is σ = 3084012. Its totient is φ = 2056000.

The previous prime is 2569979. The next prime is 2570011. The reversal of 2570005 is 5000752.

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 1473796 + 1096209 = 1214^2 + 1047^2 .

It is not a de Polignac number, because 2570005 - 2¹³ = 2561813 is a prime.

It is an Ulam number.

It is a Duffinian number.

2570005 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256996 + ... + 257005.

It is an arithmetic number, because the mean of its divisors is an integer number (771003).

2^2570005 is an apocalyptic number.

It is an amenable number.

2570005 is a deficient number, since it is larger than the sum of its proper divisors (514007).

2570005 is an equidigital number, since it uses as much as digits as its factorization.

2570005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514006.

The product of its (nonzero) digits is 350, while the sum is 19.

The square root of 2570005 is about 1603.1235136445. The cubic root of 2570005 is about 136.9760556303.

Adding to 2570005 its reverse (5000752), we get a palindrome (7570757).

The spelling of 2570005 in words is "two million, five hundred seventy thousand, five".