50420047 has 4 divisors (see below), whose sum is σ = 50438376. Its totient is φ = 50401720.

The previous prime is 50420023. The next prime is 50420057. The reversal of 50420047 is 74002405.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50420047 is a prime.

It is a super-2 number, since 2×50420047² = 5084362278964418, 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 (50420057) 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, 4108 + ... + 10849.

It is an arithmetic number, because the mean of its divisors is an integer number (12609594).

Almost surely, 2^50420047 is an apocalyptic number.

50420047 is a deficient number, since it is larger than the sum of its proper divisors (18329).

50420047 is a wasteful number, since it uses less digits than its factorization.

50420047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18328.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 50420047 is about 7100.7074999608. The cubic root of 50420047 is about 369.4319185976.

The spelling of 50420047 in words is "fifty million, four hundred twenty thousand, forty-seven".