51326100 has 108 divisors (see below), whose sum is σ = 183884064. Its totient is φ = 11730240.

The previous prime is 51326083. The next prime is 51326123. The reversal of 51326100 is 162315.

51326100 is a `hidden beast` number, since 51 + 3 + 2 + 610 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2227 + ... + 10373.

Almost surely, 2^51326100 is an apocalyptic number.

51326100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51326100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91942032).

51326100 is an abundant number, since it is smaller than the sum of its proper divisors (132557964).

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

51326100 is a wasteful number, since it uses less digits than its factorization.

51326100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8174 (or 8164 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 51326100 is about 7164.2236146005. The cubic root of 51326100 is about 371.6317027801.

Adding to 51326100 its reverse (162315), we get a palindrome (51488415).

The spelling of 51326100 in words is "fifty-one million, three hundred twenty-six thousand, one hundred".