507244981 has 2 divisors, whose sum is σ = 507244982. Its totient is φ = 507244980.

The previous prime is 507244937. The next prime is 507244987. The reversal of 507244981 is 189442705.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 482900625 + 24344356 = 21975^2 + 4934^2 .

It is a cyclic number.

It is not a de Polignac number, because 507244981 - 2¹⁵ = 507212213 is a prime.

It is a super-2 number, since 2×507244981² = 514594941499380722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (507244987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253622490 + 253622491.

It is an arithmetic number, because the mean of its divisors is an integer number (253622491).

Almost surely, 2^507244981 is an apocalyptic number.

It is an amenable number.

507244981 is a deficient number, since it is larger than the sum of its proper divisors (1).

507244981 is an equidigital number, since it uses as much as digits as its factorization.

507244981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 507244981 is about 22522.0998354949. The cubic root of 507244981 is about 797.5157210372.

The spelling of 507244981 in words is "five hundred seven million, two hundred forty-four thousand, nine hundred eighty-one".