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52121 is a prime number
BaseRepresentation
bin1100101110011001
32122111102
430232121
53131441
61041145
7304646
oct145631
978442
1052121
1136183
12261b5
131a954
1414dcd
151069b
hexcb99

52121 has 2 divisors, whose sum is σ = 52122. Its totient is φ = 52120.

The previous prime is 52103. The next prime is 52127. The reversal of 52121 is 12125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48400 + 3721 = 220^2 + 61^2 .

It is a cyclic number.

It is not a de Polignac number, because 52121 - 26 = 52057 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (52127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26060 + 26061.

It is an arithmetic number, because the mean of its divisors is an integer number (26061).

252121 is an apocalyptic number.

It is an amenable number.

52121 is a deficient number, since it is larger than the sum of its proper divisors (1).

52121 is an equidigital number, since it uses as much as digits as its factorization.

52121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20, while the sum is 11.

The square root of 52121 is about 228.3002409110. The cubic root of 52121 is about 37.3540400295.

Adding to 52121 its reverse (12125), we get a palindrome (64246).

The spelling of 52121 in words is "fifty-two thousand, one hundred twenty-one".