50507785 has 4 divisors (see below), whose sum is σ = 60609348. Its totient is φ = 40406224.

The previous prime is 50507753. The next prime is 50507789. The reversal of 50507785 is 58770505.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58770505 = 5 ⋅11754101.

It can be written as a sum of positive squares in 2 ways, for example, as 21261321 + 29246464 = 4611^2 + 5408^2 .

It is a cyclic number.

It is not a de Polignac number, because 50507785 - 2⁵ = 50507753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50507789) 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, 5050774 + ... + 5050783.

It is an arithmetic number, because the mean of its divisors is an integer number (15152337).

Almost surely, 2^50507785 is an apocalyptic number.

It is an amenable number.

50507785 is a deficient number, since it is larger than the sum of its proper divisors (10101563).

50507785 is a wasteful number, since it uses less digits than its factorization.

50507785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10101562.

The product of its (nonzero) digits is 49000, while the sum is 37.

The square root of 50507785 is about 7106.8829313561. The cubic root of 50507785 is about 369.6460823186.

The spelling of 50507785 in words is "fifty million, five hundred seven thousand, seven hundred eighty-five".