507452681 has 2 divisors, whose sum is σ = 507452682. Its totient is φ = 507452680.

The previous prime is 507452663. The next prime is 507452683. The reversal of 507452681 is 186254705.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 463110400 + 44342281 = 21520^2 + 6659^2 .

It is a cyclic number.

It is not a de Polignac number, because 507452681 - 2¹⁴ = 507436297 is a prime.

It is a super-2 number, since 2×507452681² = 515016446908175522, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 507452683, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (507452683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253726340 + 253726341.

It is an arithmetic number, because the mean of its divisors is an integer number (253726341).

Almost surely, 2^507452681 is an apocalyptic number.

It is an amenable number.

507452681 is a deficient number, since it is larger than the sum of its proper divisors (1).

507452681 is an equidigital number, since it uses as much as digits as its factorization.

507452681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 507452681 is about 22526.7103901124. The cubic root of 507452681 is about 797.6245582644.

The spelling of 507452681 in words is "five hundred seven million, four hundred fifty-two thousand, six hundred eighty-one".