51950213 has 8 divisors (see below), whose sum is σ = 59948928. Its totient is φ = 44095824.

The previous prime is 51950209. The next prime is 51950221. The reversal of 51950213 is 31205915.

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

It is a cyclic number.

It is not a de Polignac number, because 51950213 - 2² = 51950209 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 (51950243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35306 + ... + 36747.

It is an arithmetic number, because the mean of its divisors is an integer number (7493616).

Almost surely, 2^51950213 is an apocalyptic number.

It is an amenable number.

51950213 is a deficient number, since it is larger than the sum of its proper divisors (7998715).

51950213 is a wasteful number, since it uses less digits than its factorization.

51950213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72163.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 51950213 is about 7207.6496169001. The cubic root of 51950213 is about 373.1319555074.

The spelling of 51950213 in words is "fifty-one million, nine hundred fifty thousand, two hundred thirteen".