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51452213 is a prime number
BaseRepresentation
bin1100010001000…
…1100100110101
310120211001011112
43010101210311
5101132432323
65034444405
71163223311
oct304214465
9116731145
1051452213
112705289a
1215293705
13a8763c7
146b94b41
1547b5178
hex3111935

51452213 has 2 divisors, whose sum is σ = 51452214. Its totient is φ = 51452212.

The previous prime is 51452201. The next prime is 51452227. The reversal of 51452213 is 31225415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30448324 + 21003889 = 5518^2 + 4583^2 .

It is a cyclic number.

It is not a de Polignac number, because 51452213 - 28 = 51451957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51652213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25726106 + 25726107.

It is an arithmetic number, because the mean of its divisors is an integer number (25726107).

Almost surely, 251452213 is an apocalyptic number.

It is an amenable number.

51452213 is a deficient number, since it is larger than the sum of its proper divisors (1).

51452213 is an equidigital number, since it uses as much as digits as its factorization.

51452213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1200, while the sum is 23.

The square root of 51452213 is about 7173.0197964316. The cubic root of 51452213 is about 371.9358317076.

Adding to 51452213 its reverse (31225415), we get a palindrome (82677628).

The spelling of 51452213 in words is "fifty-one million, four hundred fifty-two thousand, two hundred thirteen".