2573813 has 4 divisors (see below), whose sum is σ = 2807808. Its totient is φ = 2339820.

The previous prime is 2573807. The next prime is 2573827. The reversal of 2573813 is 3183752.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2573813 - 2¹⁰ = 2572789 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2573803) 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 3 ways as a sum of consecutive naturals, for example, 116981 + ... + 117002.

It is an arithmetic number, because the mean of its divisors is an integer number (701952).

2^2573813 is an apocalyptic number.

It is an amenable number.

2573813 is a deficient number, since it is larger than the sum of its proper divisors (233995).

2573813 is a wasteful number, since it uses less digits than its factorization.

2573813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233994.

The product of its digits is 5040, while the sum is 29.

The square root of 2573813 is about 1604.3107554336. The cubic root of 2573813 is about 137.0436751368.

The spelling of 2573813 in words is "two million, five hundred seventy-three thousand, eight hundred thirteen".