2573530 has 8 divisors (see below), whose sum is σ = 4632372. Its totient is φ = 1029408.

The previous prime is 2573509. The next prime is 2573533. The reversal of 2573530 is 353752.

2573530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2217121 + 356409 = 1489^2 + 597^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2573495 and 2573504.

It is not an unprimeable number, because it can be changed into a prime (2573533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128667 + ... + 128686.

2^2573530 is an apocalyptic number.

2573530 is a deficient number, since it is larger than the sum of its proper divisors (2058842).

2573530 is a wasteful number, since it uses less digits than its factorization.

2573530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257360.

The product of its (nonzero) digits is 3150, while the sum is 25.

The square root of 2573530 is about 1604.2225531391. Note that the first 3 decimals coincide. The cubic root of 2573530 is about 137.0386521376.

The spelling of 2573530 in words is "two million, five hundred seventy-three thousand, five hundred thirty".