2042553 has 8 divisors (see below), whose sum is σ = 2740768. Its totient is φ = 1353024.

The previous prime is 2042549. The next prime is 2042581. The reversal of 2042553 is 3552402.

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

It is not a de Polignac number, because 2042553 - 2² = 2042549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2042153) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1600 + ... + 2577.

It is an arithmetic number, because the mean of its divisors is an integer number (342596).

2^2042553 is an apocalyptic number.

It is an amenable number.

2042553 is a deficient number, since it is larger than the sum of its proper divisors (698215).

2042553 is a wasteful number, since it uses less digits than its factorization.

2042553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4343.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 2042553 is about 1429.1791350282. The cubic root of 2042553 is about 126.8793986034.

Adding to 2042553 its reverse (3552402), we get a palindrome (5594955).

The spelling of 2042553 in words is "two million, forty-two thousand, five hundred fifty-three".