510778773 has 6 divisors (see below), whose sum is σ = 737791574. Its totient is φ = 340519176.

The previous prime is 510778759. The next prime is 510778777. The reversal of 510778773 is 377877015.

It can be written as a sum of positive squares in only one way, i.e., 442765764 + 68013009 = 21042^2 + 8247^2 .

It is not a de Polignac number, because 510778773 - 2¹⁶ = 510713237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (510778777) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28376590 + ... + 28376607.

Almost surely, 2^510778773 is an apocalyptic number.

It is an amenable number.

510778773 is a deficient number, since it is larger than the sum of its proper divisors (227012801).

510778773 is a wasteful number, since it uses less digits than its factorization.

510778773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56753203 (or 56753200 counting only the distinct ones).

The product of its (nonzero) digits is 288120, while the sum is 45.

The square root of 510778773 is about 22600.4153280421. The cubic root of 510778773 is about 799.3634378910.

The spelling of 510778773 in words is "five hundred ten million, seven hundred seventy-eight thousand, seven hundred seventy-three".