51040320151 has 2 divisors, whose sum is σ = 51040320152. Its totient is φ = 51040320150.

The previous prime is 51040320083. The next prime is 51040320157. The reversal of 51040320151 is 15102304015.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51040320151 - 2¹⁵ = 51040287383 is a prime.

It is a super-2 number, since 2×51040320151² (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 (51040320157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25520160075 + 25520160076.

It is an arithmetic number, because the mean of its divisors is an integer number (25520160076).

Almost surely, 2^51040320151 is an apocalyptic number.

51040320151 is a deficient number, since it is larger than the sum of its proper divisors (1).

51040320151 is an equidigital number, since it uses as much as digits as its factorization.

51040320151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 51040320151 its reverse (15102304015), we get a palindrome (66142624166).

The spelling of 51040320151 in words is "fifty-one billion, forty million, three hundred twenty thousand, one hundred fifty-one".