50989545 has 24 divisors (see below), whose sum is σ = 93582216. Its totient is φ = 25594368.

The previous prime is 50989541. The next prime is 50989553. The reversal of 50989545 is 54598905.

It can be written as a sum of positive squares in 4 ways, for example, as 522729 + 50466816 = 723^2 + 7104^2 .

It is not a de Polignac number, because 50989545 - 2² = 50989541 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 50989545.

It is not an unprimeable number, because it can be changed into a prime (50989541) 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 23 ways as a sum of consecutive naturals, for example, 32562 + ... + 34091.

It is an arithmetic number, because the mean of its divisors is an integer number (3899259).

Almost surely, 2^50989545 is an apocalyptic number.

It is an amenable number.

50989545 is a deficient number, since it is larger than the sum of its proper divisors (42592671).

50989545 is a wasteful number, since it uses less digits than its factorization.

50989545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66681 (or 66678 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 45.

The square root of 50989545 is about 7140.6963946103. The cubic root of 50989545 is about 370.8176342580.

The spelling of 50989545 in words is "fifty million, nine hundred eighty-nine thousand, five hundred forty-five".