50581001 has 4 divisors (see below), whose sum is σ = 53556372. Its totient is φ = 47605632.

The previous prime is 50580991. The next prime is 50581007. The reversal of 50581001 is 10018505.

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

It can be written as a sum of positive squares in 2 ways, for example, as 43296400 + 7284601 = 6580^2 + 2699^2 .

It is a cyclic number.

It is not a de Polignac number, because 50581001 - 2¹⁴ = 50564617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50581007) 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 3 ways as a sum of consecutive naturals, for example, 1487660 + ... + 1487693.

It is an arithmetic number, because the mean of its divisors is an integer number (13389093).

Almost surely, 2^50581001 is an apocalyptic number.

It is an amenable number.

50581001 is a deficient number, since it is larger than the sum of its proper divisors (2975371).

50581001 is a wasteful number, since it uses less digits than its factorization.

50581001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2975370.

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 50581001 is about 7112.0321287238. The cubic root of 50581001 is about 369.8246088617.

Adding to 50581001 its reverse (10018505), we get a palindrome (60599506).

The spelling of 50581001 in words is "fifty million, five hundred eighty-one thousand, one".