52221535 has 16 divisors (see below), whose sum is σ = 66531456. Its totient is φ = 39213568.

The previous prime is 52221527. The next prime is 52221553. The reversal of 52221535 is 53512225.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 52221535 - 2³ = 52221527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46794 + ... + 47896.

It is an arithmetic number, because the mean of its divisors is an integer number (4158216).

Almost surely, 2^52221535 is an apocalyptic number.

52221535 is a deficient number, since it is larger than the sum of its proper divisors (14309921).

52221535 is a wasteful number, since it uses less digits than its factorization.

52221535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682.

The product of its digits is 3000, while the sum is 25.

The square root of 52221535 is about 7226.4469139405. The cubic root of 52221535 is about 373.7804172066.

The spelling of 52221535 in words is "fifty-two million, two hundred twenty-one thousand, five hundred thirty-five".