51422351 has 2 divisors, whose sum is σ = 51422352. Its totient is φ = 51422350.

The previous prime is 51422333. The next prime is 51422363. The reversal of 51422351 is 15322415.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51422351 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51422311) 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, 25711175 + 25711176.

It is an arithmetic number, because the mean of its divisors is an integer number (25711176).

Almost surely, 2^51422351 is an apocalyptic number.

51422351 is a deficient number, since it is larger than the sum of its proper divisors (1).

51422351 is an equidigital number, since it uses as much as digits as its factorization.

51422351 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 51422351 is about 7170.9379442302. The cubic root of 51422351 is about 371.8638626799.

Adding to 51422351 its reverse (15322415), we get a palindrome (66744766).

The spelling of 51422351 in words is "fifty-one million, four hundred twenty-two thousand, three hundred fifty-one".