51051010501 has 2 divisors, whose sum is σ = 51051010502. Its totient is φ = 51051010500.

The previous prime is 51051010441. The next prime is 51051010541. The reversal of 51051010501 is 10501015015.

It is a happy number.

51051010501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36246448225 + 14804562276 = 190385^2 + 121674^2 .

It is a cyclic number.

It is not a de Polignac number, because 51051010501 - 2²³ = 51042621893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51051010541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25525505250 + 25525505251.

It is an arithmetic number, because the mean of its divisors is an integer number (25525505251).

Almost surely, 2^51051010501 is an apocalyptic number.

It is an amenable number.

51051010501 is a deficient number, since it is larger than the sum of its proper divisors (1).

51051010501 is an equidigital number, since it uses as much as digits as its factorization.

51051010501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 125, while the sum is 19.

Adding to 51051010501 its reverse (10501015015), we get a palindrome (61552025516).

The spelling of 51051010501 in words is "fifty-one billion, fifty-one million, ten thousand, five hundred one".