51042300 has 36 divisors (see below), whose sum is σ = 147683256. Its totient is φ = 13611200.

The previous prime is 51042293. The next prime is 51042311. The reversal of 51042300 is 324015.

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

It is a self number, because there is not a number n which added to its sum of digits gives 51042300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84771 + ... + 85370.

Almost surely, 2^51042300 is an apocalyptic number.

51042300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51042300 is an abundant number, since it is smaller than the sum of its proper divisors (96640956).

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

51042300 is a wasteful number, since it uses less digits than its factorization.

51042300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170158 (or 170151 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 51042300 is about 7144.3894070802. The cubic root of 51042300 is about 370.9454757699.

Adding to 51042300 its reverse (324015), we get a palindrome (51366315).

The spelling of 51042300 in words is "fifty-one million, forty-two thousand, three hundred".