48221 has 2 divisors, whose sum is σ = 48222. Its totient is φ = 48220.

The previous prime is 48197. The next prime is 48239. The reversal of 48221 is 12284.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28900 + 19321 = 170^2 + 139^2 .

It is a cyclic number.

It is not a de Polignac number, because 48221 - 2⁶ = 48157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 48221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24110 + 24111.

It is an arithmetic number, because the mean of its divisors is an integer number (24111).

2⁴⁸²²¹ is an apocalyptic number.

It is an amenable number.

48221 is a deficient number, since it is larger than the sum of its proper divisors (1).

48221 is an equidigital number, since it uses as much as digits as its factorization.

48221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 128, while the sum is 17.

The square root of 48221 is about 219.5928049823. The cubic root of 48221 is about 36.3981019821.

Subtracting from 48221 its reverse (12284), we obtain a cube (35937 = 33³).

The spelling of 48221 in words is "forty-eight thousand, two hundred twenty-one".