508778536 has 32 divisors (see below), whose sum is σ = 1091096640. Its totient is φ = 217876608.

The previous prime is 508778521. The next prime is 508778539. The reversal of 508778536 is 635877805.

It is a self number, because there is not a number n which added to its sum of digits gives 508778536.

It is not an unprimeable number, because it can be changed into a prime (508778539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90051 + ... + 95533.

It is an arithmetic number, because the mean of its divisors is an integer number (34096770).

Almost surely, 2^508778536 is an apocalyptic number.

508778536 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

508778536 is an abundant number, since it is smaller than the sum of its proper divisors (582318104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

508778536 is a wasteful number, since it uses less digits than its factorization.

508778536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7153 (or 7149 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 49.

The square root of 508778536 is about 22556.1197017572. The cubic root of 508778536 is about 798.3186228560.

The spelling of 508778536 in words is "five hundred eight million, seven hundred seventy-eight thousand, five hundred thirty-six".