51969079 has 2 divisors, whose sum is σ = 51969080. Its totient is φ = 51969078.

The previous prime is 51969077. The next prime is 51969103. The reversal of 51969079 is 97096915.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51969079 - 2¹ = 51969077 is a prime.

Together with 51969077, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51969077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25984539 + 25984540.

It is an arithmetic number, because the mean of its divisors is an integer number (25984540).

Almost surely, 2^51969079 is an apocalyptic number.

51969079 is a deficient number, since it is larger than the sum of its proper divisors (1).

51969079 is an equidigital number, since it uses as much as digits as its factorization.

51969079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 153090, while the sum is 46.

The square root of 51969079 is about 7208.9582465152. The cubic root of 51969079 is about 373.1771183348.

The spelling of 51969079 in words is "fifty-one million, nine hundred sixty-nine thousand, seventy-nine".