51001963 has 2 divisors, whose sum is σ = 51001964. Its totient is φ = 51001962.

The previous prime is 51001939. The next prime is 51001997. The reversal of 51001963 is 36910015.

51001963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51001963 - 2¹³ = 50993771 is a prime.

It is not a weakly prime, because it can be changed into another prime (51001163) 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 as a sum of consecutive naturals, namely, 25500981 + 25500982.

It is an arithmetic number, because the mean of its divisors is an integer number (25500982).

Almost surely, 2^51001963 is an apocalyptic number.

51001963 is a deficient number, since it is larger than the sum of its proper divisors (1).

51001963 is an equidigital number, since it uses as much as digits as its factorization.

51001963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 51001963 is about 7141.5658647106. The cubic root of 51001963 is about 370.8477348052.

Adding to 51001963 its reverse (36910015), we get a palindrome (87911978).

The spelling of 51001963 in words is "fifty-one million, one thousand, nine hundred sixty-three".