52958221 has 2 divisors, whose sum is σ = 52958222. Its totient is φ = 52958220.

The previous prime is 52958201. The next prime is 52958251. The reversal of 52958221 is 12285925.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31696900 + 21261321 = 5630^2 + 4611^2 .

It is a cyclic number.

It is not a de Polignac number, because 52958221 - 2⁷ = 52958093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52958201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26479110 + 26479111.

It is an arithmetic number, because the mean of its divisors is an integer number (26479111).

Almost surely, 2^52958221 is an apocalyptic number.

It is an amenable number.

52958221 is a deficient number, since it is larger than the sum of its proper divisors (1).

52958221 is an equidigital number, since it uses as much as digits as its factorization.

52958221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 34.

The square root of 52958221 is about 7277.2399300834. The cubic root of 52958221 is about 375.5298489336.

The spelling of 52958221 in words is "fifty-two million, nine hundred fifty-eight thousand, two hundred twenty-one".