6225521 has 8 divisors (see below), whose sum is σ = 6598080. Its totient is φ = 5857488.

The previous prime is 6225487. The next prime is 6225523. The reversal of 6225521 is 1255226.

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 6225521 - 2²² = 2031217 is a prime.

It is a super-2 number, since 2×6225521² = 77514223442882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6225523) 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, 1940 + ... + 4026.

It is an arithmetic number, because the mean of its divisors is an integer number (824760).

Almost surely, 2^6225521 is an apocalyptic number.

It is an amenable number.

6225521 is a deficient number, since it is larger than the sum of its proper divisors (372559).

6225521 is a wasteful number, since it uses less digits than its factorization.

6225521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2263.

The product of its digits is 1200, while the sum is 23.

The square root of 6225521 is about 2495.0993968177. The cubic root of 6225521 is about 183.9607765322.

The spelling of 6225521 in words is "six million, two hundred twenty-five thousand, five hundred twenty-one".