51020350151 has 16 divisors (see below), whose sum is σ = 53610854400. Its totient is φ = 48487538400.

The previous prime is 51020350141. The next prime is 51020350159. The reversal of 51020350151 is 15105302015.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51020350151 is a prime.

It is a super-2 number, since 2×51020350151² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51020350159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1254506 + ... + 1294536.

It is an arithmetic number, because the mean of its divisors is an integer number (3350678400).

Almost surely, 2^51020350151 is an apocalyptic number.

51020350151 is a deficient number, since it is larger than the sum of its proper divisors (2590504249).

51020350151 is a wasteful number, since it uses less digits than its factorization.

51020350151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40750.

The product of its (nonzero) digits is 750, while the sum is 23.

Adding to 51020350151 its reverse (15105302015), we get a palindrome (66125652166).

The spelling of 51020350151 in words is "fifty-one billion, twenty million, three hundred fifty thousand, one hundred fifty-one".