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52385321 is a prime number
BaseRepresentation
bin1100011111010…
…1011000101001
310122120110011002
43013311120221
5101402312241
65110444345
71204160612
oct307653051
9118513132
1052385321
112762a95a
12156636b5
13ab12041
146d58c09
1548eb89b
hex31f5629

52385321 has 2 divisors, whose sum is σ = 52385322. Its totient is φ = 52385320.

The previous prime is 52385297. The next prime is 52385323. The reversal of 52385321 is 12358325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40386025 + 11999296 = 6355^2 + 3464^2 .

It is a cyclic number.

It is not a de Polignac number, because 52385321 - 214 = 52368937 is a prime.

Together with 52385323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52385323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26192660 + 26192661.

It is an arithmetic number, because the mean of its divisors is an integer number (26192661).

Almost surely, 252385321 is an apocalyptic number.

It is an amenable number.

52385321 is a deficient number, since it is larger than the sum of its proper divisors (1).

52385321 is an equidigital number, since it uses as much as digits as its factorization.

52385321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 29.

The square root of 52385321 is about 7237.7704439972. The cubic root of 52385321 is about 374.1707804789.

The spelling of 52385321 in words is "fifty-two million, three hundred eighty-five thousand, three hundred twenty-one".