51600522021100 has 72 divisors (see below), whose sum is σ = 120696780137360. Its totient is φ = 19035068532480.

The previous prime is 51600522021089. The next prime is 51600522021121. The reversal of 51600522021100 is 112022500615.

It is a super-2 number, since 2×51600522021100² (a number of 28 digits) contains 22 as substring.

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

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, 16736790 + ... + 19578589.

Almost surely, 2^{51600522021100} is an apocalyptic number.

51600522021100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51600522021100 is an abundant number, since it is smaller than the sum of its proper divisors (69096258116260).

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

51600522021100 is a wasteful number, since it uses less digits than its factorization.

51600522021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36316499 (or 36316492 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 51600522021100 its reverse (112022500615), we get a palindrome (51712544521715).

The spelling of 51600522021100 in words is "fifty-one trillion, six hundred billion, five hundred twenty-two million, twenty-one thousand, one hundred".