51330300 has 72 divisors (see below), whose sum is σ = 169739136. Its totient is φ = 11732160.

The previous prime is 51330299. The next prime is 51330317. The reversal of 51330300 is 303315.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 51330300.

It is a congruent number.

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, 10122 + ... + 14321.

It is an arithmetic number, because the mean of its divisors is an integer number (2357488).

Almost surely, 2^51330300 is an apocalyptic number.

51330300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51330300 is an abundant number, since it is smaller than the sum of its proper divisors (118408836).

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

51330300 is a wasteful number, since it uses less digits than its factorization.

51330300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24467 (or 24460 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 15.

The square root of 51330300 is about 7164.5167317831. The cubic root of 51330300 is about 371.6418393420.

Adding to 51330300 its reverse (303315), we get a palindrome (51633615).

The spelling of 51330300 in words is "fifty-one million, three hundred thirty thousand, three hundred".