51300642607 has 2 divisors, whose sum is σ = 51300642608. Its totient is φ = 51300642606.

The previous prime is 51300642593. The next prime is 51300642641. The reversal of 51300642607 is 70624600315.

It is a happy number.

It is an a-pointer prime, because the next prime (51300642641) can be obtained adding 51300642607 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51300642607 is a prime.

It is a super-2 number, since 2×51300642607² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51300642697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25650321303 + 25650321304.

It is an arithmetic number, because the mean of its divisors is an integer number (25650321304).

Almost surely, 2^51300642607 is an apocalyptic number.

51300642607 is a deficient number, since it is larger than the sum of its proper divisors (1).

51300642607 is an equidigital number, since it uses as much as digits as its factorization.

51300642607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 51300642607 in words is "fifty-one billion, three hundred million, six hundred forty-two thousand, six hundred seven".