51038200 has 24 divisors (see below), whose sum is σ = 118664280. Its totient is φ = 20415200.

The previous prime is 51038191. The next prime is 51038203. The reversal of 51038200 is 283015.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51038203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 127396 + ... + 127795.

It is an arithmetic number, because the mean of its divisors is an integer number (4944345).

Almost surely, 2^51038200 is an apocalyptic number.

51038200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51038200 is an abundant number, since it is smaller than the sum of its proper divisors (67626080).

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

51038200 is a wasteful number, since it uses less digits than its factorization.

51038200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255207 (or 255198 counting only the distinct ones).

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

The square root of 51038200 is about 7144.1024628710. The cubic root of 51038200 is about 370.9355433728.

The spelling of 51038200 in words is "fifty-one million, thirty-eight thousand, two hundred".