51073907 has 2 divisors, whose sum is σ = 51073908. Its totient is φ = 51073906.

The previous prime is 51073879. The next prime is 51073909. The reversal of 51073907 is 70937015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51073907 - 2⁸ = 51073651 is a prime.

Together with 51073909, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51073909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25536953 + 25536954.

It is an arithmetic number, because the mean of its divisors is an integer number (25536954).

Almost surely, 2^51073907 is an apocalyptic number.

51073907 is a deficient number, since it is larger than the sum of its proper divisors (1).

51073907 is an equidigital number, since it uses as much as digits as its factorization.

51073907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6615, while the sum is 32.

The square root of 51073907 is about 7146.6010802339. The cubic root of 51073907 is about 371.0220270122.

The spelling of 51073907 in words is "fifty-one million, seventy-three thousand, nine hundred seven".