50981247 has 12 divisors (see below), whose sum is σ = 74468160. Its totient is φ = 33605088.

The previous prime is 50981221. The next prime is 50981261. The reversal of 50981247 is 74218905.

It is not a de Polignac number, because 50981247 - 2¹⁴ = 50964863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50981647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31023 + ... + 32624.

It is an arithmetic number, because the mean of its divisors is an integer number (6205680).

Almost surely, 2^50981247 is an apocalyptic number.

50981247 is a deficient number, since it is larger than the sum of its proper divisors (23486913).

50981247 is a wasteful number, since it uses less digits than its factorization.

50981247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63742 (or 63739 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 50981247 is about 7140.1153352029. The cubic root of 50981247 is about 370.7975176396.

The spelling of 50981247 in words is "fifty million, nine hundred eighty-one thousand, two hundred forty-seven".