51125415007 has 2 divisors, whose sum is σ = 51125415008. Its totient is φ = 51125415006.

The previous prime is 51125414993. The next prime is 51125415041. The reversal of 51125415007 is 70051452115.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51125415007 - 2¹⁵ = 51125382239 is a prime.

It is a super-2 number, since 2×51125415007² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51125415007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51125415097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25562707503 + 25562707504.

It is an arithmetic number, because the mean of its divisors is an integer number (25562707504).

Almost surely, 2^51125415007 is an apocalyptic number.

51125415007 is a deficient number, since it is larger than the sum of its proper divisors (1).

51125415007 is an equidigital number, since it uses as much as digits as its factorization.

51125415007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7000, while the sum is 31.

The spelling of 51125415007 in words is "fifty-one billion, one hundred twenty-five million, four hundred fifteen thousand, seven".