50661047 has 4 divisors (see below), whose sum is σ = 50799456. Its totient is φ = 50522640.

The previous prime is 50661007. The next prime is 50661053. The reversal of 50661047 is 74016605.

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 50661047 - 2⁸ = 50660791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50661007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68654 + ... + 69387.

It is an arithmetic number, because the mean of its divisors is an integer number (12699864).

Almost surely, 2^50661047 is an apocalyptic number.

50661047 is a deficient number, since it is larger than the sum of its proper divisors (138409).

50661047 is a wasteful number, since it uses less digits than its factorization.

50661047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138408.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 50661047 is about 7117.6574095695. The cubic root of 50661047 is about 370.0195923397.

The spelling of 50661047 in words is "fifty million, six hundred sixty-one thousand, forty-seven".