52625221 has 8 divisors (see below), whose sum is σ = 57474144. Its totient is φ = 47787120.

The previous prime is 52625213. The next prime is 52625257. The reversal of 52625221 is 12252625.

It is a happy number.

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 52625221 - 2³ = 52625213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52625281) 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, 10146 + ... + 14428.

It is an arithmetic number, because the mean of its divisors is an integer number (7184268).

Almost surely, 2^52625221 is an apocalyptic number.

It is an amenable number.

52625221 is a deficient number, since it is larger than the sum of its proper divisors (4848923).

52625221 is a wasteful number, since it uses less digits than its factorization.

52625221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5411.

The product of its digits is 2400, while the sum is 25.

The square root of 52625221 is about 7254.3242965834. The cubic root of 52625221 is about 374.7410858697.

Adding to 52625221 its reverse (12252625), we get a palindrome (64877846).

The spelling of 52625221 in words is "fifty-two million, six hundred twenty-five thousand, two hundred twenty-one".