8025521 has 8 divisors (see below), whose sum is σ = 9207360. Its totient is φ = 6852528.

The previous prime is 8025517. The next prime is 8025527. The reversal of 8025521 is 1255208.

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 8025521 - 2² = 8025517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8025527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131 + ... + 4008.

It is an arithmetic number, because the mean of its divisors is an integer number (1150920).

Almost surely, 2^8025521 is an apocalyptic number.

It is an amenable number.

8025521 is a deficient number, since it is larger than the sum of its proper divisors (1181839).

8025521 is a wasteful number, since it uses less digits than its factorization.

8025521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4423.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 8025521 is about 2832.9350504380. The cubic root of 8025521 is about 200.2124492467.

The spelling of 8025521 in words is "eight million, twenty-five thousand, five hundred twenty-one".