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52225231 is a prime number
BaseRepresentation
bin1100011100111…
…0010011001111
310122021022112211
43013032103033
5101332201411
65103211251
71202623102
oct307162317
9118238484
1052225231
1127530653
12155a6b27
13aa87206
146d16739
1548b9221
hex31ce4cf

52225231 has 2 divisors, whose sum is σ = 52225232. Its totient is φ = 52225230.

The previous prime is 52225213. The next prime is 52225237. The reversal of 52225231 is 13252225.

Together with previous prime (52225213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52225231 - 29 = 52224719 is a prime.

It is a super-2 number, since 2×522252312 = 5454949506006722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52225237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26112615 + 26112616.

It is an arithmetic number, because the mean of its divisors is an integer number (26112616).

Almost surely, 252225231 is an apocalyptic number.

52225231 is a deficient number, since it is larger than the sum of its proper divisors (1).

52225231 is an equidigital number, since it uses as much as digits as its factorization.

52225231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1200, while the sum is 22.

The square root of 52225231 is about 7226.7026367493. The cubic root of 52225231 is about 373.7892351513.

Adding to 52225231 its reverse (13252225), we get a palindrome (65477456).

The spelling of 52225231 in words is "fifty-two million, two hundred twenty-five thousand, two hundred thirty-one".