51200418 has 16 divisors (see below), whose sum is σ = 102494880. Its totient is φ = 17051136.

The previous prime is 51200417. The next prime is 51200441. The reversal of 51200418 is 81400215.

It is a junction number, because it is equal to n+sod(n) for n = 51200394 and 51200403.

It is not an unprimeable number, because it can be changed into a prime (51200417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4578 + ... + 11106.

It is an arithmetic number, because the mean of its divisors is an integer number (6405930).

Almost surely, 2^51200418 is an apocalyptic number.

51200418 is an abundant number, since it is smaller than the sum of its proper divisors (51294462).

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

51200418 is a wasteful number, since it uses less digits than its factorization.

51200418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7841.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 51200418 is about 7155.4467365777. The cubic root of 51200418 is about 371.3281171988.

The spelling of 51200418 in words is "fifty-one million, two hundred thousand, four hundred eighteen".