51907967 has 2 divisors, whose sum is σ = 51907968. Its totient is φ = 51907966.

The previous prime is 51907963. The next prime is 51907969. The reversal of 51907967 is 76970915.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51907967 - 2² = 51907963 is a prime.

Together with 51907969, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51907963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25953983 + 25953984.

It is an arithmetic number, because the mean of its divisors is an integer number (25953984).

Almost surely, 2^51907967 is an apocalyptic number.

51907967 is a deficient number, since it is larger than the sum of its proper divisors (1).

51907967 is an equidigital number, since it uses as much as digits as its factorization.

51907967 is an evil number, because the sum of its binary digits is even.

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

The square root of 51907967 is about 7204.7183845033. The cubic root of 51907967 is about 373.0307842351.

The spelling of 51907967 in words is "fifty-one million, nine hundred seven thousand, nine hundred sixty-seven".