51056000555100 has 72 divisors (see below), whose sum is σ = 156411559363248. Its totient is φ = 12814055040000.

The previous prime is 51056000555099. The next prime is 51056000555101. The reversal of 51056000555100 is 155500065015.

It is an interprime number because it is at equal distance from previous prime (51056000555099) and next prime (51056000555101).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51056000555101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5005485151 + ... + 5005495350.

It is an arithmetic number, because the mean of its divisors is an integer number (2172382768934).

Almost surely, 2^{51056000555100} is an apocalyptic number.

51056000555100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51056000555100 is an abundant number, since it is smaller than the sum of its proper divisors (105355558808148).

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

51056000555100 is a wasteful number, since it uses less digits than its factorization.

51056000555100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10010980535 (or 10010980528 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 33.

The spelling of 51056000555100 in words is "fifty-one trillion, fifty-six billion, five hundred fifty-five thousand, one hundred".