509066077 has 4 divisors (see below), whose sum is σ = 548225020. Its totient is φ = 469907136.

The previous prime is 509066057. The next prime is 509066081. The reversal of 509066077 is 770660905.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 85488516 + 423577561 = 9246^2 + 20581^2 .

It is a cyclic number.

It is not a de Polignac number, because 509066077 - 2¹¹ = 509064029 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 (509066057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19579452 + ... + 19579477.

It is an arithmetic number, because the mean of its divisors is an integer number (137056255).

Almost surely, 2^509066077 is an apocalyptic number.

It is an amenable number.

509066077 is a deficient number, since it is larger than the sum of its proper divisors (39158943).

509066077 is a wasteful number, since it uses less digits than its factorization.

509066077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39158942.

The product of its (nonzero) digits is 79380, while the sum is 40.

The square root of 509066077 is about 22562.4927035999. The cubic root of 509066077 is about 798.4689869722.

The spelling of 509066077 in words is "five hundred nine million, sixty-six thousand, seventy-seven".