2536221 has 8 divisors (see below), whose sum is σ = 3413664. Its totient is φ = 1674800.

The previous prime is 2536217. The next prime is 2536241. The reversal of 2536221 is 1226352.

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 2536221 - 2² = 2536217 is a prime.

2536221 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2536201) 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, 3630 + ... + 4271.

It is an arithmetic number, because the mean of its divisors is an integer number (426708).

2^2536221 is an apocalyptic number.

It is an amenable number.

2536221 is a deficient number, since it is larger than the sum of its proper divisors (877443).

2536221 is a wasteful number, since it uses less digits than its factorization.

2536221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8011.

The product of its digits is 720, while the sum is 21.

The square root of 2536221 is about 1592.5517260045. The cubic root of 2536221 is about 136.3732000161.

The spelling of 2536221 in words is "two million, five hundred thirty-six thousand, two hundred twenty-one".