2573545 has 24 divisors (see below), whose sum is σ = 3558744. Its totient is φ = 1775616.

The previous prime is 2573533. The next prime is 2573551. The reversal of 2573545 is 5453752.

2573545 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 12 ways, for example, as 254016 + 2319529 = 504^2 + 1523^2 .

It is not a de Polignac number, because 2573545 - 2¹¹ = 2571497 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹³ + 5 + 7⁴ + 3¹² + 5⁷ + 4⁴ + 5⁹ .

It is a Duffinian number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 18717 + ... + 18853.

It is an arithmetic number, because the mean of its divisors is an integer number (148281).

2^2573545 is an apocalyptic number.

It is an amenable number.

2573545 is a deficient number, since it is larger than the sum of its proper divisors (985199).

2573545 is a wasteful number, since it uses less digits than its factorization.

2573545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 172 counting only the distinct ones).

The product of its digits is 21000, while the sum is 31.

The square root of 2573545 is about 1604.2272282940. The cubic root of 2573545 is about 137.0389183836.

The spelling of 2573545 in words is "two million, five hundred seventy-three thousand, five hundred forty-five".