50545531 has 4 divisors (see below), whose sum is σ = 52176064. Its totient is φ = 48915000.

The previous prime is 50545519. The next prime is 50545549. The reversal of 50545531 is 13554505.

50545531 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 50545531 - 2²⁵ = 16991099 is a prime.

It is a super-2 number, since 2×50545531² = 5109701408143922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50545531.

It is not an unprimeable number, because it can be changed into a prime (50545501) 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, 815220 + ... + 815281.

It is an arithmetic number, because the mean of its divisors is an integer number (13044016).

Almost surely, 2^50545531 is an apocalyptic number.

50545531 is a deficient number, since it is larger than the sum of its proper divisors (1630533).

50545531 is a wasteful number, since it uses less digits than its factorization.

50545531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630532.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 50545531 is about 7109.5380299989. The cubic root of 50545531 is about 369.7381419666.

It can be divided in two parts, 50545 and 531, that added together give a square (51076 = 226²).

The spelling of 50545531 in words is "fifty million, five hundred forty-five thousand, five hundred thirty-one".