507898081 has 2 divisors, whose sum is σ = 507898082. Its totient is φ = 507898080.

The previous prime is 507898073. The next prime is 507898091. The reversal of 507898081 is 180898705.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 504227025 + 3671056 = 22455^2 + 1916^2 .

It is a cyclic number.

It is not a de Polignac number, because 507898081 - 2³ = 507898073 is a prime.

It is a super-2 number, since 2×507898081² = 515920921366965122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (507898021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253949040 + 253949041.

It is an arithmetic number, because the mean of its divisors is an integer number (253949041).

Almost surely, 2^507898081 is an apocalyptic number.

It is an amenable number.

507898081 is a deficient number, since it is larger than the sum of its proper divisors (1).

507898081 is an equidigital number, since it uses as much as digits as its factorization.

507898081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 46.

The square root of 507898081 is about 22536.5942635528. The cubic root of 507898081 is about 797.8578529816.

The spelling of 507898081 in words is "five hundred seven million, eight hundred ninety-eight thousand, eighty-one".