51230199 has 8 divisors (see below), whose sum is σ = 68742640. Its totient is φ = 33935616.

The previous prime is 51230183. The next prime is 51230219. The reversal of 51230199 is 99103215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51230199 - 2⁴ = 51230183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51230119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53914 + ... + 54855.

It is an arithmetic number, because the mean of its divisors is an integer number (8592830).

Almost surely, 2^51230199 is an apocalyptic number.

51230199 is a deficient number, since it is larger than the sum of its proper divisors (17512441).

51230199 is a wasteful number, since it uses less digits than its factorization.

51230199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108929.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 51230199 is about 7157.5274362031. The cubic root of 51230199 is about 371.4000982470.

The spelling of 51230199 in words is "fifty-one million, two hundred thirty thousand, one hundred ninety-nine".