51000324450 has 24 divisors (see below), whose sum is σ = 126480805008. Its totient is φ = 13600086480.

The previous prime is 51000324449. The next prime is 51000324497. The reversal of 51000324450 is 5442300015.

It is a self number, because there is not a number n which added to its sum of digits gives 51000324450.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170000932 + ... + 170001231.

It is an arithmetic number, because the mean of its divisors is an integer number (5270033542).

Almost surely, 2^51000324450 is an apocalyptic number.

51000324450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51000324450 is an abundant number, since it is smaller than the sum of its proper divisors (75480480558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51000324450 is a wasteful number, since it uses less digits than its factorization.

51000324450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340002178 (or 340002173 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 51000324450 its reverse (5442300015), we get a palindrome (56442624465).

The spelling of 51000324450 in words is "fifty-one billion, three hundred twenty-four thousand, four hundred fifty".