47325221 has 2 divisors, whose sum is σ = 47325222. Its totient is φ = 47325220.

The previous prime is 47325209. The next prime is 47325253. The reversal of 47325221 is 12252374.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26522500 + 20802721 = 5150^2 + 4561^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47325221 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47325281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23662610 + 23662611.

It is an arithmetic number, because the mean of its divisors is an integer number (23662611).

Almost surely, 2^47325221 is an apocalyptic number.

It is an amenable number.

47325221 is a deficient number, since it is larger than the sum of its proper divisors (1).

47325221 is an equidigital number, since it uses as much as digits as its factorization.

47325221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 26.

The square root of 47325221 is about 6879.3328891688. The cubic root of 47325221 is about 361.7130826858.

Adding to 47325221 its reverse (12252374), we get a palindrome (59577595).

The spelling of 47325221 in words is "forty-seven million, three hundred twenty-five thousand, two hundred twenty-one".