51079967 has 2 divisors, whose sum is σ = 51079968. Its totient is φ = 51079966.

The previous prime is 51079957. The next prime is 51080011. The reversal of 51079967 is 76997015.

It is an a-pointer prime, because the next prime (51080011) can be obtained adding 51079967 to its sum of digits (44).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51079967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51079927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25539983 + 25539984.

It is an arithmetic number, because the mean of its divisors is an integer number (25539984).

Almost surely, 2^51079967 is an apocalyptic number.

51079967 is a deficient number, since it is larger than the sum of its proper divisors (1).

51079967 is an equidigital number, since it uses as much as digits as its factorization.

51079967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 119070, while the sum is 44.

The square root of 51079967 is about 7147.0250454297. The cubic root of 51079967 is about 371.0367005491.

The spelling of 51079967 in words is "fifty-one million, seventy-nine thousand, nine hundred sixty-seven".