2790553 has 4 divisors (see below), whose sum is σ = 2811060. Its totient is φ = 2770048.

The previous prime is 2790547. The next prime is 2790563. The reversal of 2790553 is 3550972.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1814409 + 976144 = 1347^2 + 988^2 .

It is a cyclic number.

It is not a de Polignac number, because 2790553 - 2⁹ = 2790041 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2790563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10048 + ... + 10321.

It is an arithmetic number, because the mean of its divisors is an integer number (702765).

2^2790553 is an apocalyptic number.

It is an amenable number.

2790553 is a deficient number, since it is larger than the sum of its proper divisors (20507).

2790553 is a wasteful number, since it uses less digits than its factorization.

2790553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20506.

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 2790553 is about 1670.4948368672. The cubic root of 2790553 is about 140.7872821513.

The spelling of 2790553 in words is "two million, seven hundred ninety thousand, five hundred fifty-three".