51982491052 has 12 divisors (see below), whose sum is σ = 91426493200. Its totient is φ = 25860635856.

The previous prime is 51982490999. The next prime is 51982491073. The reversal of 51982491052 is 25019428915.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 51982490993 and 51982491011.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 32651523 + ... + 32653114.

Almost surely, 2^51982491052 is an apocalyptic number.

It is an amenable number.

51982491052 is a deficient number, since it is larger than the sum of its proper divisors (39444002148).

51982491052 is a wasteful number, since it uses less digits than its factorization.

51982491052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65304840 (or 65304838 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 46.

The spelling of 51982491052 in words is "fifty-one billion, nine hundred eighty-two million, four hundred ninety-one thousand, fifty-two".