506057386 has 4 divisors (see below), whose sum is σ = 759086082. Its totient is φ = 253028692.

The previous prime is 506057359. The next prime is 506057393. The reversal of 506057386 is 683750605.

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., 486864225 + 19193161 = 22065^2 + 4381^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126514345 + ... + 126514348.

Almost surely, 2^506057386 is an apocalyptic number.

506057386 is a deficient number, since it is larger than the sum of its proper divisors (253028696).

506057386 is a wasteful number, since it uses less digits than its factorization.

506057386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253028695.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 506057386 is about 22495.7192816767. The cubic root of 506057386 is about 796.8928360811.

The spelling of 506057386 in words is "five hundred six million, fifty-seven thousand, three hundred eighty-six".