506425361 has 4 divisors (see below), whose sum is σ = 545381172. Its totient is φ = 467469552.

The previous prime is 506425357. The next prime is 506425391. The reversal of 506425361 is 163524605.

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

It can be written as a sum of positive squares in 2 ways, for example, as 316840000 + 189585361 = 17800^2 + 13769^2 .

It is a cyclic number.

It is not a de Polignac number, because 506425361 - 2² = 506425357 is a prime.

It is a super-4 number, since 4×506425361⁴ (a number of 36 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506425301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19477886 + ... + 19477911.

It is an arithmetic number, because the mean of its divisors is an integer number (136345293).

Almost surely, 2^506425361 is an apocalyptic number.

It is an amenable number.

506425361 is a deficient number, since it is larger than the sum of its proper divisors (38955811).

506425361 is a wasteful number, since it uses less digits than its factorization.

506425361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38955810.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 506425361 is about 22503.8965737047. The cubic root of 506425361 is about 797.0859403965.

Adding to 506425361 its reverse (163524605), we get a palindrome (669949966).

The spelling of 506425361 in words is "five hundred six million, four hundred twenty-five thousand, three hundred sixty-one".