50890885 has 4 divisors (see below), whose sum is σ = 61069068. Its totient is φ = 40712704.

The previous prime is 50890849. The next prime is 50890907. The reversal of 50890885 is 58809805.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58809805 = 5 ⋅11761961.

It can be written as a sum of positive squares in 2 ways, for example, as 35034561 + 15856324 = 5919^2 + 3982^2 .

It is a cyclic number.

It is not a de Polignac number, because 50890885 - 2⁷ = 50890757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5089084 + ... + 5089093.

It is an arithmetic number, because the mean of its divisors is an integer number (15267267).

Almost surely, 2^50890885 is an apocalyptic number.

It is an amenable number.

50890885 is a deficient number, since it is larger than the sum of its proper divisors (10178183).

50890885 is a wasteful number, since it uses less digits than its factorization.

50890885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10178182.

The product of its (nonzero) digits is 115200, while the sum is 43.

The square root of 50890885 is about 7133.7847598592. The cubic root of 50890885 is about 370.5783140255.

The spelling of 50890885 in words is "fifty million, eight hundred ninety thousand, eight hundred eighty-five".