51021325300 has 72 divisors (see below), whose sum is σ = 120818017152. Its totient is φ = 18547584000.

The previous prime is 51021325291. The next prime is 51021325351. The reversal of 51021325300 is 352312015.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5804709 + ... + 5813491.

It is an arithmetic number, because the mean of its divisors is an integer number (1678028016).

Almost surely, 2^51021325300 is an apocalyptic number.

51021325300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51021325300 is an abundant number, since it is smaller than the sum of its proper divisors (69796691852).

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

51021325300 is a wasteful number, since it uses less digits than its factorization.

51021325300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14089 (or 14082 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

Adding to 51021325300 its reverse (352312015), we get a palindrome (51373637315).

The spelling of 51021325300 in words is "fifty-one billion, twenty-one million, three hundred twenty-five thousand, three hundred".