51650193 has 16 divisors (see below), whose sum is σ = 80040960. Its totient is φ = 29013456.

The previous prime is 51650191. The next prime is 51650197. The reversal of 51650193 is 39105615.

It is not a de Polignac number, because 51650193 - 2¹ = 51650191 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51650193.

It is not an unprimeable number, because it can be changed into a prime (51650191) 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 15 ways as a sum of consecutive naturals, for example, 19605 + ... + 22082.

It is an arithmetic number, because the mean of its divisors is an integer number (5002560).

Almost surely, 2^51650193 is an apocalyptic number.

It is an amenable number.

51650193 is a deficient number, since it is larger than the sum of its proper divisors (28390767).

51650193 is a wasteful number, since it uses less digits than its factorization.

51650193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41756.

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 51650193 is about 7186.8068709268. The cubic root of 51650193 is about 372.4122712791.

The spelling of 51650193 in words is "fifty-one million, six hundred fifty thousand, one hundred ninety-three".