52777500509 has 2 divisors, whose sum is σ = 52777500510. Its totient is φ = 52777500508.

The previous prime is 52777500487. The next prime is 52777500593. The reversal of 52777500509 is 90500577725.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36831367225 + 15946133284 = 191915^2 + 126278^2 .

It is a cyclic number.

It is not a de Polignac number, because 52777500509 - 2⁸ = 52777500253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52777500599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26388750254 + 26388750255.

It is an arithmetic number, because the mean of its divisors is an integer number (26388750255).

Almost surely, 2^52777500509 is an apocalyptic number.

It is an amenable number.

52777500509 is a deficient number, since it is larger than the sum of its proper divisors (1).

52777500509 is an equidigital number, since it uses as much as digits as its factorization.

52777500509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 771750, while the sum is 47.

The spelling of 52777500509 in words is "fifty-two billion, seven hundred seventy-seven million, five hundred thousand, five hundred nine".