51450043350 has 48 divisors (see below), whose sum is σ = 127612881360. Its totient is φ = 13718208000.

The previous prime is 51450043321. The next prime is 51450043409. The reversal of 51450043350 is 5334005415.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1435650 + ... + 1471050.

It is an arithmetic number, because the mean of its divisors is an integer number (2658601695).

Almost surely, 2^51450043350 is an apocalyptic number.

51450043350 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51450043350 is an abundant number, since it is smaller than the sum of its proper divisors (76162838010).

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

51450043350 is a wasteful number, since it uses less digits than its factorization.

51450043350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45105 (or 45100 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 51450043350 its reverse (5334005415), we get a palindrome (56784048765).

The spelling of 51450043350 in words is "fifty-one billion, four hundred fifty million, forty-three thousand, three hundred fifty".