2573425728 has 140 divisors (see below), whose sum is σ = 8077448412. Its totient is φ = 807321600.

The previous prime is 2573425681. The next prime is 2573425747. The reversal of 2573425728 is 8275243752.

2573425728 is a `hidden beast` number, since 2 + 5 + 73 + 4 + 2 + 572 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1423401984 + 1150023744 = 37728^2 + 33912^2 .

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 73528 + ... + 102728.

Almost surely, 2^2573425728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2573425728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4038724206).

2573425728 is an abundant number, since it is smaller than the sum of its proper divisors (5504022684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2573425728 is a wasteful number, since it uses less digits than its factorization.

2573425728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29242 (or 29223 counting only the distinct ones).

The product of its digits is 940800, while the sum is 45.

The square root of 2573425728 is about 50728.9436909542. The cubic root of 2573425728 is about 1370.3680130921.

The spelling of 2573425728 in words is "two billion, five hundred seventy-three million, four hundred twenty-five thousand, seven hundred twenty-eight".