51498093992 has 16 divisors (see below), whose sum is σ = 96567191700. Its totient is φ = 25746842880.

The previous prime is 51498093991. The next prime is 51498094007. The reversal of 51498093992 is 29939089415.

It can be written as a sum of positive squares in 2 ways, for example, as 41109184516 + 10388909476 = 202754^2 + 101926^2 .

It is not an unprimeable number, because it can be changed into a prime (51498093991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174017 + ... + 365072.

Almost surely, 2^51498093992 is an apocalyptic number.

It is an amenable number.

51498093992 is a deficient number, since it is larger than the sum of its proper divisors (45069097708).

51498093992 is a wasteful number, since it uses less digits than its factorization.

51498093992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551036 (or 551032 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 59.

The spelling of 51498093992 in words is "fifty-one billion, four hundred ninety-eight million, ninety-three thousand, nine hundred ninety-two".