51200030 has 32 divisors (see below), whose sum is σ = 105753600. Its totient is φ = 17483040.

The previous prime is 51200027. The next prime is 51200053. The reversal of 51200030 is 3000215.

It is a junction number, because it is equal to n+sod(n) for n = 51199984 and 51200020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17621 + ... + 20319.

It is an arithmetic number, because the mean of its divisors is an integer number (3304800).

Almost surely, 2^51200030 is an apocalyptic number.

51200030 is an abundant number, since it is smaller than the sum of its proper divisors (54553570).

51200030 is a wasteful number, since it uses less digits than its factorization.

51200030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2984.

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 51200030 is about 7155.4196243127. The cubic root of 51200030 is about 371.3271792138.

Adding to 51200030 its reverse (3000215), we get a palindrome (54200245).

The spelling of 51200030 in words is "fifty-one million, two hundred thousand, thirty".