51115005010 has 8 divisors (see below), whose sum is σ = 92007009036. Its totient is φ = 20446002000.

The previous prime is 51115004947. The next prime is 51115005023. The reversal of 51115005010 is 1050051115.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 50567866129 + 547138881 = 224873^2 + 23391^2 .

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

It is a super-2 number, since 2×51115005010² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2555750241 + ... + 2555750260.

Almost surely, 2^51115005010 is an apocalyptic number.

51115005010 is a deficient number, since it is larger than the sum of its proper divisors (40892004026).

51115005010 is a wasteful number, since it uses less digits than its factorization.

51115005010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5111500508.

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

Adding to 51115005010 its reverse (1050051115), we get a palindrome (52165056125).

The spelling of 51115005010 in words is "fifty-one billion, one hundred fifteen million, five thousand, ten".