506065557 has 8 divisors (see below), whose sum is σ = 678145600. Its totient is φ = 335681280.

The previous prime is 506065543. The next prime is 506065561. The reversal of 506065557 is 755560605.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 506065557 - 2¹⁶ = 506000021 is a prime.

It is a super-2 number, since 2×506065557² = 512204695963440498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506065507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423244 + ... + 424437.

It is an arithmetic number, because the mean of its divisors is an integer number (84768200).

Almost surely, 2^506065557 is an apocalyptic number.

It is an amenable number.

506065557 is a deficient number, since it is larger than the sum of its proper divisors (172080043).

506065557 is a wasteful number, since it uses less digits than its factorization.

506065557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847883.

The product of its (nonzero) digits is 157500, while the sum is 39.

The square root of 506065557 is about 22495.9008932739. The cubic root of 506065557 is about 796.8971250389.

The spelling of 506065557 in words is "five hundred six million, sixty-five thousand, five hundred fifty-seven".