51200133 has 4 divisors (see below), whose sum is σ = 68266848. Its totient is φ = 34133420.

The previous prime is 51200129. The next prime is 51200147. The reversal of 51200133 is 33100215.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51200133 - 2² = 51200129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51200153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8533353 + ... + 8533358.

It is an arithmetic number, because the mean of its divisors is an integer number (17066712).

Almost surely, 2^51200133 is an apocalyptic number.

It is an amenable number.

51200133 is a deficient number, since it is larger than the sum of its proper divisors (17066715).

51200133 is a wasteful number, since it uses less digits than its factorization.

51200133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17066714.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 51200133 is about 7155.4268216508. The cubic root of 51200133 is about 371.3274282155.

Adding to 51200133 its reverse (33100215), we get a palindrome (84300348).

The spelling of 51200133 in words is "fifty-one million, two hundred thousand, one hundred thirty-three".