50166538 has 4 divisors (see below), whose sum is σ = 75249810. Its totient is φ = 25083268.

The previous prime is 50166527. The next prime is 50166539. The reversal of 50166538 is 83566105.

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

It can be written as a sum of positive squares in only one way, i.e., 37613689 + 12552849 = 6133^2 + 3543^2 .

It is not an unprimeable number, because it can be changed into a prime (50166539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12541633 + ... + 12541636.

Almost surely, 2^50166538 is an apocalyptic number.

50166538 is a deficient number, since it is larger than the sum of its proper divisors (25083272).

50166538 is a wasteful number, since it uses less digits than its factorization.

50166538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25083271.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 50166538 is about 7082.8340373046. The cubic root of 50166538 is about 368.8117174109.

The spelling of 50166538 in words is "fifty million, one hundred sixty-six thousand, five hundred thirty-eight".