51326000 has 80 divisors (see below), whose sum is σ = 135446688. Its totient is φ = 18656000.

The previous prime is 51325997. The next prime is 51326017. The reversal of 51326000 is 62315.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 51326000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20834 + ... + 23166.

Almost surely, 2^51326000 is an apocalyptic number.

51326000 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 51326000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67723344).

51326000 is an abundant number, since it is smaller than the sum of its proper divisors (84120688).

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

51326000 is a wasteful number, since it uses less digits than its factorization.

51326000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2367 (or 2351 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 51326000 is about 7164.2166354738. The cubic root of 51326000 is about 371.6314614266.

Adding to 51326000 its reverse (62315), we get a palindrome (51388315).

The spelling of 51326000 in words is "fifty-one million, three hundred twenty-six thousand".