50103981 has 16 divisors (see below), whose sum is σ = 78595200. Its totient is φ = 31437504.

The previous prime is 50103961. The next prime is 50103983. The reversal of 50103981 is 18930105.

It is not a de Polignac number, because 50103981 - 2⁶ = 50103917 is a prime.

It is a super-2 number, since 2×50103981² = 5020817824096722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50103983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54121 + ... + 55038.

It is an arithmetic number, because the mean of its divisors is an integer number (4912200).

Almost surely, 2^50103981 is an apocalyptic number.

50103981 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

50103981 is a deficient number, since it is larger than the sum of its proper divisors (28491219).

50103981 is a wasteful number, since it uses less digits than its factorization.

50103981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109185 (or 109179 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 50103981 is about 7078.4165602202. The cubic root of 50103981 is about 368.6583525570.

The spelling of 50103981 in words is "fifty million, one hundred three thousand, nine hundred eighty-one".