2572334821 has 24 divisors (see below), whose sum is σ = 3173848920. Its totient is φ = 2071544832.

The previous prime is 2572334801. The next prime is 2572334837. The reversal of 2572334821 is 1284332752.

It can be written as a sum of positive squares in 4 ways, for example, as 15920100 + 2556414721 = 3990^2 + 50561^2 .

It is not a de Polignac number, because 2572334821 - 2⁹ = 2572334309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2572334801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 541585 + ... + 546313.

It is an arithmetic number, because the mean of its divisors is an integer number (132243705).

Almost surely, 2^2572334821 is an apocalyptic number.

It is an amenable number.

2572334821 is a deficient number, since it is larger than the sum of its proper divisors (601514099).

2572334821 is a wasteful number, since it uses less digits than its factorization.

2572334821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5413 (or 5406 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 2572334821 is about 50718.1902378230. The cubic root of 2572334821 is about 1370.1743470729.

The spelling of 2572334821 in words is "two billion, five hundred seventy-two million, three hundred thirty-four thousand, eight hundred twenty-one".