50072181 has 8 divisors (see below), whose sum is σ = 67099200. Its totient is φ = 33213312.

The previous prime is 50072177. The next prime is 50072203. The reversal of 50072181 is 18127005.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50072181 - 2² = 50072177 is a prime.

It is a super-2 number, since 2×50072181² = 5014446620193522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50072101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41340 + ... + 42533.

It is an arithmetic number, because the mean of its divisors is an integer number (8387400).

Almost surely, 2^50072181 is an apocalyptic number.

It is an amenable number.

50072181 is a deficient number, since it is larger than the sum of its proper divisors (17027019).

50072181 is a wasteful number, since it uses less digits than its factorization.

50072181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84075.

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 50072181 is about 7076.1699386038. The cubic root of 50072181 is about 368.5803426767.

Adding to 50072181 its reverse (18127005), we get a palindrome (68199186).

The spelling of 50072181 in words is "fifty million, seventy-two thousand, one hundred eighty-one".