51045660031 has 16 divisors (see below), whose sum is σ = 52383849984. Its totient is φ = 49718458944.

The previous prime is 51045660019. The next prime is 51045660049. The reversal of 51045660031 is 13006654015.

It is not a de Polignac number, because 51045660031 - 2¹¹ = 51045657983 is a prime.

It is a super-2 number, since 2×51045660031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51045659975 and 51045660002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51045660331) 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, 12673840 + ... + 12677866.

It is an arithmetic number, because the mean of its divisors is an integer number (3273990624).

Almost surely, 2^51045660031 is an apocalyptic number.

51045660031 is a deficient number, since it is larger than the sum of its proper divisors (1338189953).

51045660031 is a wasteful number, since it uses less digits than its factorization.

51045660031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5310.

The product of its (nonzero) digits is 10800, while the sum is 31.

The spelling of 51045660031 in words is "fifty-one billion, forty-five million, six hundred sixty thousand, thirty-one".