2573223621 has 16 divisors (see below), whose sum is σ = 3554204160. Its totient is φ = 1654027200.

The previous prime is 2573223607. The next prime is 2573223659. The reversal of 2573223621 is 1263223752.

It is not a de Polignac number, because 2573223621 - 2¹⁵ = 2573190853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2573223661) 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 15 ways as a sum of consecutive naturals, for example, 43596 + ... + 83946.

It is an arithmetic number, because the mean of its divisors is an integer number (222137760).

Almost surely, 2^2573223621 is an apocalyptic number.

It is an amenable number.

2573223621 is a deficient number, since it is larger than the sum of its proper divisors (980980539).

2573223621 is a wasteful number, since it uses less digits than its factorization.

2573223621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41116.

The product of its digits is 30240, while the sum is 33.

The square root of 2573223621 is about 50726.9516233728. The cubic root of 2573223621 is about 1370.3321376680.

The spelling of 2573223621 in words is "two billion, five hundred seventy-three million, two hundred twenty-three thousand, six hundred twenty-one".