504628081 has 2 divisors, whose sum is σ = 504628082. Its totient is φ = 504628080.

The previous prime is 504628057. The next prime is 504628093. The reversal of 504628081 is 180826405.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 447111025 + 57517056 = 21145^2 + 7584^2 .

It is a cyclic number.

It is not a de Polignac number, because 504628081 - 2¹¹ = 504626033 is a prime.

It is a super-2 number, since 2×504628081² = 509299000267485122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (504628381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252314040 + 252314041.

It is an arithmetic number, because the mean of its divisors is an integer number (252314041).

Almost surely, 2^504628081 is an apocalyptic number.

It is an amenable number.

504628081 is a deficient number, since it is larger than the sum of its proper divisors (1).

504628081 is an equidigital number, since it uses as much as digits as its factorization.

504628081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 504628081 is about 22463.9284409473. The cubic root of 504628081 is about 796.1418824257.

The spelling of 504628081 in words is "five hundred four million, six hundred twenty-eight thousand, eighty-one".