2573215 has 4 divisors (see below), whose sum is σ = 3087864. Its totient is φ = 2058568.

The previous prime is 2573209. The next prime is 2573231. The reversal of 2573215 is 5123752.

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

It is a cyclic number.

It is not a de Polignac number, because 2573215 - 2¹³ = 2565023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2573215.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257317 + ... + 257326.

It is an arithmetic number, because the mean of its divisors is an integer number (771966).

2^2573215 is an apocalyptic number.

2573215 is a deficient number, since it is larger than the sum of its proper divisors (514649).

2573215 is an equidigital number, since it uses as much as digits as its factorization.

2573215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514648.

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

The square root of 2573215 is about 1604.1243717368. The cubic root of 2573215 is about 137.0330607338.

Adding to 2573215 its product of digits (2100), we get a triangular number (2575315 = T₂₂₆₉).

Adding to 2573215 its reverse (5123752), we get a palindrome (7696967).

It can be divided in two parts, 257 and 3215, that multiplied together give a triangular number (826255 = T₁₂₈₅).

The spelling of 2573215 in words is "two million, five hundred seventy-three thousand, two hundred fifteen".