51025543000 has 64 divisors (see below), whose sum is σ = 119433787200. Its totient is φ = 20404403200.

The previous prime is 51025542991. The next prime is 51025543001. The reversal of 51025543000 is 34552015.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51025543001) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5922696 + ... + 5931304.

It is an arithmetic number, because the mean of its divisors is an integer number (1866152925).

Almost surely, 2^51025543000 is an apocalyptic number.

51025543000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51025543000 is an abundant number, since it is smaller than the sum of its proper divisors (68408244200).

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

51025543000 is a wasteful number, since it uses less digits than its factorization.

51025543000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14557 (or 14543 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The spelling of 51025543000 in words is "fifty-one billion, twenty-five million, five hundred forty-three thousand".