51504300 has 108 divisors (see below), whose sum is σ = 163505160. Its totient is φ = 13559040.

The previous prime is 51504293. The next prime is 51504301. The reversal of 51504300 is 340515.

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

It is not an unprimeable number, because it can be changed into a prime (51504301) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 79779 + ... + 80421.

Almost surely, 2^51504300 is an apocalyptic number.

51504300 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 51504300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81752580).

51504300 is an abundant number, since it is smaller than the sum of its proper divisors (112000860).

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

51504300 is a wasteful number, since it uses less digits than its factorization.

51504300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752 (or 742 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 51504300 is about 7176.6496361464. The cubic root of 51504300 is about 372.0612975646.

Adding to 51504300 its reverse (340515), we get a palindrome (51844815).

The spelling of 51504300 in words is "fifty-one million, five hundred four thousand, three hundred".