51930203 has 16 divisors (see below), whose sum is σ = 58030560. Its totient is φ = 46158336.

The previous prime is 51930199. The next prime is 51930209. The reversal of 51930203 is 30203915.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 51930203 - 2² = 51930199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51930209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50963 + ... + 51971.

It is an arithmetic number, because the mean of its divisors is an integer number (3626910).

Almost surely, 2^51930203 is an apocalyptic number.

51930203 is a deficient number, since it is larger than the sum of its proper divisors (6100357).

51930203 is a wasteful number, since it uses less digits than its factorization.

51930203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 51930203 is about 7206.2613746658. The cubic root of 51930203 is about 373.0840421379.

The spelling of 51930203 in words is "fifty-one million, nine hundred thirty thousand, two hundred three".