51267967 has 2 divisors, whose sum is σ = 51267968. Its totient is φ = 51267966.

The previous prime is 51267959. The next prime is 51268001. The reversal of 51267967 is 76976215.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51267967 - 2³ = 51267959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51217967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25633983 + 25633984.

It is an arithmetic number, because the mean of its divisors is an integer number (25633984).

Almost surely, 2^51267967 is an apocalyptic number.

51267967 is a deficient number, since it is larger than the sum of its proper divisors (1).

51267967 is an equidigital number, since it uses as much as digits as its factorization.

51267967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 158760, while the sum is 43.

The square root of 51267967 is about 7160.1652913882. The cubic root of 51267967 is about 371.4913438638.

The spelling of 51267967 in words is "fifty-one million, two hundred sixty-seven thousand, nine hundred sixty-seven".