51377563 has 2 divisors, whose sum is σ = 51377564. Its totient is φ = 51377562.

The previous prime is 51377549. The next prime is 51377569. The reversal of 51377563 is 36577315.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51377563 - 2¹³ = 51369371 is a prime.

It is not a weakly prime, because it can be changed into another prime (51377569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25688781 + 25688782.

It is an arithmetic number, because the mean of its divisors is an integer number (25688782).

Almost surely, 2^51377563 is an apocalyptic number.

51377563 is a deficient number, since it is larger than the sum of its proper divisors (1).

51377563 is an equidigital number, since it uses as much as digits as its factorization.

51377563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 66150, while the sum is 37.

The square root of 51377563 is about 7167.8143809672. The cubic root of 51377563 is about 371.7558689371.

The spelling of 51377563 in words is "fifty-one million, three hundred seventy-seven thousand, five hundred sixty-three".