51115522310530 has 8 divisors (see below), whose sum is σ = 92007940158972. Its totient is φ = 20446208924208.

The previous prime is 51115522310497. The next prime is 51115522310581. The reversal of 51115522310530 is 3501322551115.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 49342462287561 + 1773060022969 = 7024419^2 + 1331563^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×51115522310530² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2555776115517 + ... + 2555776115536.

Almost surely, 2^{51115522310530} is an apocalyptic number.

51115522310530 is a deficient number, since it is larger than the sum of its proper divisors (40892417848442).

51115522310530 is a wasteful number, since it uses less digits than its factorization.

51115522310530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5111552231060.

The product of its (nonzero) digits is 22500, while the sum is 34.

Adding to 51115522310530 its reverse (3501322551115), we get a palindrome (54616844861645).

The spelling of 51115522310530 in words is "fifty-one trillion, one hundred fifteen billion, five hundred twenty-two million, three hundred ten thousand, five hundred thirty".