506145886 has 4 divisors (see below), whose sum is σ = 759218832. Its totient is φ = 253072942.

The previous prime is 506145847. The next prime is 506145901. The reversal of 506145886 is 688541605.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126536470 + ... + 126536473.

It is an arithmetic number, because the mean of its divisors is an integer number (189804708).

Almost surely, 2^506145886 is an apocalyptic number.

506145886 is a deficient number, since it is larger than the sum of its proper divisors (253072946).

506145886 is a wasteful number, since it uses less digits than its factorization.

506145886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253072945.

The product of its (nonzero) digits is 230400, while the sum is 43.

The square root of 506145886 is about 22497.6862365889. The cubic root of 506145886 is about 796.9392872723.

The spelling of 506145886 in words is "five hundred six million, one hundred forty-five thousand, eight hundred eighty-six".