50505531 has 4 divisors (see below), whose sum is σ = 67340712. Its totient is φ = 33670352.

The previous prime is 50505529. The next prime is 50505547. The reversal of 50505531 is 13550505.

50505531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50505531 - 2¹ = 50505529 is a prime.

It is a super-2 number, since 2×50505531² = 5101617323183922, which contains 22 as substring.

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8417586 + ... + 8417591.

It is an arithmetic number, because the mean of its divisors is an integer number (16835178).

Almost surely, 2^50505531 is an apocalyptic number.

50505531 is a deficient number, since it is larger than the sum of its proper divisors (16835181).

50505531 is a wasteful number, since it uses less digits than its factorization.

50505531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16835180.

The product of its (nonzero) digits is 1875, while the sum is 24.

The square root of 50505531 is about 7106.7243509229. The cubic root of 50505531 is about 369.6405835316.

The spelling of 50505531 in words is "fifty million, five hundred five thousand, five hundred thirty-one".