51548963 has 2 divisors, whose sum is σ = 51548964. Its totient is φ = 51548962.

The previous prime is 51548941. The next prime is 51548977. The reversal of 51548963 is 36984515.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51548963 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51548963.

It is not a weakly prime, because it can be changed into another prime (51548923) 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 as a sum of consecutive naturals, namely, 25774481 + 25774482.

It is an arithmetic number, because the mean of its divisors is an integer number (25774482).

Almost surely, 2^51548963 is an apocalyptic number.

51548963 is a deficient number, since it is larger than the sum of its proper divisors (1).

51548963 is an equidigital number, since it uses as much as digits as its factorization.

51548963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 41.

The square root of 51548963 is about 7179.7606506067. The cubic root of 51548963 is about 372.1688133298.

The spelling of 51548963 in words is "fifty-one million, five hundred forty-eight thousand, nine hundred sixty-three".