51203800 has 24 divisors (see below), whose sum is σ = 119049300. Its totient is φ = 20481440.

The previous prime is 51203797. The next prime is 51203833. The reversal of 51203800 is 830215.

It is a happy number.

51203800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 127810 + ... + 128209.

Almost surely, 2^51203800 is an apocalyptic number.

51203800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51203800 is an abundant number, since it is smaller than the sum of its proper divisors (67845500).

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

51203800 is a wasteful number, since it uses less digits than its factorization.

51203800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256035 (or 256026 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 51203800 is about 7155.6830561450. The cubic root of 51203800 is about 371.3362929397.

It can be divided in two parts, 51203 and 800, that added together give a triangular number (52003 = T₃₂₂).

The spelling of 51203800 in words is "fifty-one million, two hundred three thousand, eight hundred".