51560300 has 72 divisors (see below), whose sum is σ = 128533440. Its totient is φ = 17755200.

The previous prime is 51560261. The next prime is 51560317. The reversal of 51560300 is 306515.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 19667 + ... + 22133.

Almost surely, 2^51560300 is an apocalyptic number.

51560300 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 51560300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64266720).

51560300 is an abundant number, since it is smaller than the sum of its proper divisors (76973140).

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

51560300 is a wasteful number, since it uses less digits than its factorization.

51560300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511 (or 2504 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 51560300 is about 7180.5501182013. The cubic root of 51560300 is about 372.1960946323.

Adding to 51560300 its reverse (306515), we get a palindrome (51866815).

The spelling of 51560300 in words is "fifty-one million, five hundred sixty thousand, three hundred".