50947147 has 4 divisors (see below), whose sum is σ = 53944056. Its totient is φ = 47950240.

The previous prime is 50947129. The next prime is 50947153. The reversal of 50947147 is 74174905.

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

It is a cyclic number.

It is not a de Polignac number, because 50947147 - 2¹⁵ = 50914379 is a prime.

It is a super-2 number, since 2×50947147² = 5191223574879218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50947177) 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, 1498429 + ... + 1498462.

It is an arithmetic number, because the mean of its divisors is an integer number (13486014).

Almost surely, 2^50947147 is an apocalyptic number.

50947147 is a deficient number, since it is larger than the sum of its proper divisors (2996909).

50947147 is a wasteful number, since it uses less digits than its factorization.

50947147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2996908.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 50947147 is about 7137.7270191567. The cubic root of 50947147 is about 370.7148270016.

The spelling of 50947147 in words is "fifty million, nine hundred forty-seven thousand, one hundred forty-seven".