50045981 has 8 divisors (see below), whose sum is σ = 52746720. Its totient is φ = 47351952.

The previous prime is 50045951. The next prime is 50045987. The reversal of 50045981 is 18954005.

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

It is not a de Polignac number, because 50045981 - 2⁶ = 50045917 is a prime.

It is a super-2 number, since 2×50045981² = 5009200428504722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50045987) 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, 23351 + ... + 25403.

It is an arithmetic number, because the mean of its divisors is an integer number (6593340).

Almost surely, 2^50045981 is an apocalyptic number.

It is an amenable number.

50045981 is a deficient number, since it is larger than the sum of its proper divisors (2700739).

50045981 is a wasteful number, since it uses less digits than its factorization.

50045981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3355.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 50045981 is about 7074.3184123985. The cubic root of 50045981 is about 368.5160455656.

Adding to 50045981 its reverse (18954005), we get a palindrome (68999986).

The spelling of 50045981 in words is "fifty million, forty-five thousand, nine hundred eighty-one".