51051005050511 has 16 divisors (see below), whose sum is σ = 52248594706560. Its totient is φ = 49862156048640.

The previous prime is 51051005050403. The next prime is 51051005050561. The reversal of 51051005050511 is 11505050015015.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51051005050511 is a prime.

It is a super-2 number, since 2×51051005050511² (a number of 28 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 (51051005050561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88567706 + ... + 89142248.

It is an arithmetic number, because the mean of its divisors is an integer number (3265537169160).

Almost surely, 2^{51051005050511} is an apocalyptic number.

51051005050511 is a deficient number, since it is larger than the sum of its proper divisors (1197589656049).

51051005050511 is a wasteful number, since it uses less digits than its factorization.

51051005050511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582146.

The product of its (nonzero) digits is 3125, while the sum is 29.

Adding to 51051005050511 its reverse (11505050015015), we get a palindrome (62556055065526).

The spelling of 51051005050511 in words is "fifty-one trillion, fifty-one billion, five million, fifty thousand, five hundred eleven".