2053445 has 8 divisors (see below), whose sum is σ = 2478840. Its totient is φ = 1632960.

The previous prime is 2053439. The next prime is 2053459. The reversal of 2053445 is 5443502.

It can be written as a sum of positive squares in 4 ways, for example, as 187489 + 1865956 = 433^2 + 1366^2 .

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

It is not a de Polignac number, because 2053445 - 2⁸ = 2053189 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2053445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230 + ... + 2039.

It is an arithmetic number, because the mean of its divisors is an integer number (309855).

2^2053445 is an apocalyptic number.

It is an amenable number.

2053445 is a deficient number, since it is larger than the sum of its proper divisors (425395).

2053445 is a wasteful number, since it uses less digits than its factorization.

2053445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2455.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 2053445 is about 1432.9846475102. The cubic root of 2053445 is about 127.1045288186.

Adding to 2053445 its reverse (5443502), we get a palindrome (7496947).

The spelling of 2053445 in words is "two million, fifty-three thousand, four hundred forty-five".