506772785 has 8 divisors (see below), whose sum is σ = 608435880. Its totient is φ = 405212544.

The previous prime is 506772781. The next prime is 506772787. The reversal of 506772785 is 587277605.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11621281 + 495151504 = 3409^2 + 22252^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 506772785 - 2² = 506772781 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (506772781) 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, 14420 + ... + 34949.

It is an arithmetic number, because the mean of its divisors is an integer number (76054485).

Almost surely, 2^506772785 is an apocalyptic number.

It is an amenable number.

506772785 is a deficient number, since it is larger than the sum of its proper divisors (101663095).

506772785 is a wasteful number, since it uses less digits than its factorization.

506772785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51427.

The product of its (nonzero) digits is 823200, while the sum is 47.

The square root of 506772785 is about 22511.6144467695. The cubic root of 506772785 is about 797.2681742157.

The spelling of 506772785 in words is "five hundred six million, seven hundred seventy-two thousand, seven hundred eighty-five".