51131355010 has 8 divisors (see below), whose sum is σ = 92036439036. Its totient is φ = 20452542000.

The previous prime is 51131355007. The next prime is 51131355091. The reversal of 51131355010 is 1055313115.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 46890870849 + 4240484161 = 216543^2 + 65119^2 .

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

It is a super-2 number, since 2×51131355010² (a number of 22 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, 2556567741 + ... + 2556567760.

Almost surely, 2^51131355010 is an apocalyptic number.

51131355010 is a deficient number, since it is larger than the sum of its proper divisors (40905084026).

51131355010 is a wasteful number, since it uses less digits than its factorization.

51131355010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5113135508.

The product of its (nonzero) digits is 1125, while the sum is 25.

Adding to 51131355010 its reverse (1055313115), we get a palindrome (52186668125).

The spelling of 51131355010 in words is "fifty-one billion, one hundred thirty-one million, three hundred fifty-five thousand, ten".