50556551 has 2 divisors, whose sum is σ = 50556552. Its totient is φ = 50556550.

The previous prime is 50556533. The next prime is 50556563. The reversal of 50556551 is 15565505.

50556551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50556551 - 2¹⁸ = 50294407 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50553551) 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, 25278275 + 25278276.

It is an arithmetic number, because the mean of its divisors is an integer number (25278276).

Almost surely, 2^50556551 is an apocalyptic number.

50556551 is a deficient number, since it is larger than the sum of its proper divisors (1).

50556551 is an equidigital number, since it uses as much as digits as its factorization.

50556551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18750, while the sum is 32.

The square root of 50556551 is about 7110.3130029556. The cubic root of 50556551 is about 369.7650102717.

The spelling of 50556551 in words is "fifty million, five hundred fifty-six thousand, five hundred fifty-one".