51234700 has 72 divisors (see below), whose sum is σ = 123992064. Its totient is φ = 18216000.

The previous prime is 51234679. The next prime is 51234713. The reversal of 51234700 is 743215.

51234700 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51205 + ... + 52195.

It is an arithmetic number, because the mean of its divisors is an integer number (1722112).

Almost surely, 2^51234700 is an apocalyptic number.

51234700 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 51234700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61996032).

51234700 is an abundant number, since it is smaller than the sum of its proper divisors (72757364).

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

51234700 is a wasteful number, since it uses less digits than its factorization.

51234700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063 (or 1056 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 51234700 is about 7157.8418535198. The cubic root of 51234700 is about 371.4109747933.

Adding to 51234700 its reverse (743215), we get a palindrome (51977915).

The spelling of 51234700 in words is "fifty-one million, two hundred thirty-four thousand, seven hundred".