2575262521 has 8 divisors (see below), whose sum is σ = 2841003144. Its totient is φ = 2319185280.

The previous prime is 2575262491. The next prime is 2575262531. The reversal of 2575262521 is 1252625752.

It can be written as a sum of positive squares in 4 ways, for example, as 135396496 + 2439866025 = 11636^2 + 49395^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2575262521 - 2³¹ = 427778873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2575262531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2415286 + ... + 2416351.

It is an arithmetic number, because the mean of its divisors is an integer number (355125393).

Almost surely, 2^2575262521 is an apocalyptic number.

It is an amenable number.

2575262521 is a deficient number, since it is larger than the sum of its proper divisors (265740623).

2575262521 is a wasteful number, since it uses less digits than its factorization.

2575262521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4831691.

The product of its digits is 84000, while the sum is 37.

The square root of 2575262521 is about 50747.0444558104. The cubic root of 2575262521 is about 1370.6939707867.

The spelling of 2575262521 in words is "two billion, five hundred seventy-five million, two hundred sixty-two thousand, five hundred twenty-one".