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51701269253 is a prime number
BaseRepresentation
bin110000001001101000…
…101100001100000101
311221110011001121022012
4300021220230030011
51321341011104003
635430133344005
73510130352264
oct601150541405
9157404047265
1051701269253
111aa210228a7
12a02a798005
134b4c371c1a
1427066665db
151528de98d8
hexc09a2c305

51701269253 has 2 divisors, whose sum is σ = 51701269254. Its totient is φ = 51701269252.

The previous prime is 51701269229. The next prime is 51701269259. The reversal of 51701269253 is 35296210715.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34702846369 + 16998422884 = 186287^2 + 130378^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-51701269253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51701269253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51701269259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25850634626 + 25850634627.

It is an arithmetic number, because the mean of its divisors is an integer number (25850634627).

Almost surely, 251701269253 is an apocalyptic number.

It is an amenable number.

51701269253 is a deficient number, since it is larger than the sum of its proper divisors (1).

51701269253 is an equidigital number, since it uses as much as digits as its factorization.

51701269253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 113400, while the sum is 41.

Adding to 51701269253 its reverse (35296210715), we get a palindrome (86997479968).

The spelling of 51701269253 in words is "fifty-one billion, seven hundred one million, two hundred sixty-nine thousand, two hundred fifty-three".