51004043000 has 64 divisors (see below), whose sum is σ = 120444667200. Its totient is φ = 20214403200.

The previous prime is 51004042967. The next prime is 51004043003. The reversal of 51004043000 is 34040015.

It is a self number, because there is not a number n which added to its sum of digits gives 51004043000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51004043003) 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, 124964 + ... + 342963.

It is an arithmetic number, because the mean of its divisors is an integer number (1881947925).

Almost surely, 2^51004043000 is an apocalyptic number.

51004043000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51004043000 is an abundant number, since it is smaller than the sum of its proper divisors (69440624200).

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

51004043000 is a wasteful number, since it uses less digits than its factorization.

51004043000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468057 (or 468043 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

Adding to 51004043000 its reverse (34040015), we get a palindrome (51038083015).

The spelling of 51004043000 in words is "fifty-one billion, four million, forty-three thousand".