51607207 has 2 divisors, whose sum is σ = 51607208. Its totient is φ = 51607206.

The previous prime is 51607187. The next prime is 51607217. The reversal of 51607207 is 70270615.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51607207 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51607217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25803603 + 25803604.

It is an arithmetic number, because the mean of its divisors is an integer number (25803604).

Almost surely, 2^51607207 is an apocalyptic number.

51607207 is a deficient number, since it is larger than the sum of its proper divisors (1).

51607207 is an equidigital number, since it uses as much as digits as its factorization.

51607207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 51607207 is about 7183.8156295941. The cubic root of 51607207 is about 372.3089289290.

The spelling of 51607207 in words is "fifty-one million, six hundred seven thousand, two hundred seven".