50166605 has 4 divisors (see below), whose sum is σ = 60199932. Its totient is φ = 40133280.

The previous prime is 50166601. The next prime is 50166619. The reversal of 50166605 is 50666105.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17322244 + 32844361 = 4162^2 + 5731^2 .

It is not a de Polignac number, because 50166605 - 2² = 50166601 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 (50166601) 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, 5016656 + ... + 5016665.

It is an arithmetic number, because the mean of its divisors is an integer number (15049983).

Almost surely, 2^50166605 is an apocalyptic number.

It is an amenable number.

50166605 is a deficient number, since it is larger than the sum of its proper divisors (10033327).

50166605 is a wasteful number, since it uses less digits than its factorization.

50166605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10033326.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 50166605 is about 7082.8387670481. The cubic root of 50166605 is about 368.8118815999.

Subtracting 50166605 from its reverse (50666105), we obtain a triangular number (499500 = T₉₉₉).

The spelling of 50166605 in words is "fifty million, one hundred sixty-six thousand, six hundred five".