51552300 has 72 divisors (see below), whose sum is σ = 149990400. Its totient is φ = 13670720.

The previous prime is 51552217. The next prime is 51552317. The reversal of 51552300 is 325515.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71341 + ... + 72059.

It is an arithmetic number, because the mean of its divisors is an integer number (2083200).

Almost surely, 2^51552300 is an apocalyptic number.

51552300 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 51552300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74995200).

51552300 is an abundant number, since it is smaller than the sum of its proper divisors (98438100).

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

51552300 is a wasteful number, since it uses less digits than its factorization.

51552300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975 (or 968 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 51552300 is about 7179.9930362083. The cubic root of 51552300 is about 372.1768438860.

Adding to 51552300 its reverse (325515), we get a palindrome (51877815).

The spelling of 51552300 in words is "fifty-one million, five hundred fifty-two thousand, three hundred".