508278949 has 2 divisors, whose sum is σ = 508278950. Its totient is φ = 508278948.

The previous prime is 508278931. The next prime is 508278973. The reversal of 508278949 is 949872805.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 502432225 + 5846724 = 22415^2 + 2418^2 .

It is a cyclic number.

It is not a de Polignac number, because 508278949 - 2¹³ = 508270757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 508278896 and 508278905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (508278919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254139474 + 254139475.

It is an arithmetic number, because the mean of its divisors is an integer number (254139475).

Almost surely, 2^508278949 is an apocalyptic number.

It is an amenable number.

508278949 is a deficient number, since it is larger than the sum of its proper divisors (1).

508278949 is an equidigital number, since it uses as much as digits as its factorization.

508278949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 52.

The square root of 508278949 is about 22545.0426701747. The cubic root of 508278949 is about 798.0572385205.

The spelling of 508278949 in words is "five hundred eight million, two hundred seventy-eight thousand, nine hundred forty-nine".