51647510131 has 24 divisors (see below), whose sum is σ = 60360630624. Its totient is φ = 44062824960.

The previous prime is 51647510081. The next prime is 51647510231. The reversal of 51647510131 is 13101574615.

It is not a de Polignac number, because 51647510131 - 2¹⁵ = 51647477363 is a prime.

It is a super-2 number, since 2×51647510131² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51647510231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10600626 + ... + 10605496.

It is an arithmetic number, because the mean of its divisors is an integer number (2515026276).

Almost surely, 2^51647510131 is an apocalyptic number.

51647510131 is a deficient number, since it is larger than the sum of its proper divisors (8713120493).

51647510131 is a wasteful number, since it uses less digits than its factorization.

51647510131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5851 (or 5844 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 34.

The spelling of 51647510131 in words is "fifty-one billion, six hundred forty-seven million, five hundred ten thousand, one hundred thirty-one".