506140366 has 4 divisors (see below), whose sum is σ = 759210552. Its totient is φ = 253070182.

The previous prime is 506140351. The next prime is 506140387. The reversal of 506140366 is 663041605.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 663041605 = 5 ⋅132608321.

It is a super-2 number, since 2×506140366² = 512356140189227912, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 126535090 + ... + 126535093.

It is an arithmetic number, because the mean of its divisors is an integer number (189802638).

Almost surely, 2^506140366 is an apocalyptic number.

506140366 is a deficient number, since it is larger than the sum of its proper divisors (253070186).

506140366 is a wasteful number, since it uses less digits than its factorization.

506140366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253070185.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 506140366 is about 22497.5635569721. The cubic root of 506140366 is about 796.9363901360.

It can be divided in two parts, 50 and 6140366, that added together give a palindrome (6140416).

The spelling of 506140366 in words is "five hundred six million, one hundred forty thousand, three hundred sixty-six".