51945963 has 8 divisors (see below), whose sum is σ = 69720576. Its totient is φ = 34401000.

The previous prime is 51945961. The next prime is 51945977. The reversal of 51945963 is 36954915.

51945963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 51945963 - 2¹ = 51945961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51945961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56883 + ... + 57788.

It is an arithmetic number, because the mean of its divisors is an integer number (8715072).

Almost surely, 2^51945963 is an apocalyptic number.

51945963 is a deficient number, since it is larger than the sum of its proper divisors (17774613).

51945963 is a wasteful number, since it uses less digits than its factorization.

51945963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114825.

The product of its digits is 145800, while the sum is 42.

The square root of 51945963 is about 7207.3547852177. The cubic root of 51945963 is about 373.1217800339.

The spelling of 51945963 in words is "fifty-one million, nine hundred forty-five thousand, nine hundred sixty-three".