50505553 has 16 divisors (see below), whose sum is σ = 60968320. Its totient is φ = 40870656.

The previous prime is 50505551. The next prime is 50505571. The reversal of 50505553 is 35550505.

It is a cyclic number.

It is not a de Polignac number, because 50505553 - 2¹ = 50505551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50505551) 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 in 15 ways as a sum of consecutive naturals, for example, 57151 + ... + 58027.

It is an arithmetic number, because the mean of its divisors is an integer number (3810520).

Almost surely, 2^50505553 is an apocalyptic number.

It is an amenable number.

50505553 is a deficient number, since it is larger than the sum of its proper divisors (10462767).

50505553 is a wasteful number, since it uses less digits than its factorization.

50505553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336.

The product of its (nonzero) digits is 9375, while the sum is 28.

The square root of 50505553 is about 7106.7258987525. The cubic root of 50505553 is about 369.6406372029.

The spelling of 50505553 in words is "fifty million, five hundred five thousand, five hundred fifty-three".