508978049 has 2 divisors, whose sum is σ = 508978050. Its totient is φ = 508978048.

The previous prime is 508978039. The next prime is 508978069. The reversal of 508978049 is 940879805.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 364810000 + 144168049 = 19100^2 + 12007^2 .

It is a cyclic number.

It is not a de Polignac number, because 508978049 - 2⁸ = 508977793 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 508977988 and 508978006.

It is not a weakly prime, because it can be changed into another prime (508978009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254489024 + 254489025.

It is an arithmetic number, because the mean of its divisors is an integer number (254489025).

Almost surely, 2^508978049 is an apocalyptic number.

It is an amenable number.

508978049 is a deficient number, since it is larger than the sum of its proper divisors (1).

508978049 is an equidigital number, since it uses as much as digits as its factorization.

508978049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 50.

The square root of 508978049 is about 22560.5418596274. The cubic root of 508978049 is about 798.4229604130.

It can be divided in two parts, 5089 and 78049, that added together give a palindrome (83138).

The spelling of 508978049 in words is "five hundred eight million, nine hundred seventy-eight thousand, forty-nine".