6575425921 has 9 divisors (see below), whose sum is σ = 6636724833. Its totient is φ = 6514690260.

The previous prime is 6575425907. The next prime is 6575425933. The reversal of 6575425921 is 1295245756.

The square root of 6575425921 is 81089.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 6575425921 - 2²⁵ = 6541871489 is a prime.

It is a Duffinian number.

Its product of digits (756000) is a multiple of the sum of its prime divisors (750).

It is not an unprimeable number, because it can be changed into a prime (6575425421) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10622350 + ... + 10622968.

Almost surely, 2^6575425921 is an apocalyptic number.

6575425921 is the 81089-th square number.

6575425921 is the 40545-th centered octagonal number.

It is an amenable number.

6575425921 is a deficient number, since it is larger than the sum of its proper divisors (61298912).

6575425921 is an frugal number, since it uses more digits than its factorization.

6575425921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500 (or 750 counting only the distinct ones).

The product of its digits is 756000, while the sum is 46.

The cubic root of 6575425921 is about 1873.4465042642.

The spelling of 6575425921 in words is "six billion, five hundred seventy-five million, four hundred twenty-five thousand, nine hundred twenty-one".