52777161 has 6 divisors (see below), whose sum is σ = 76233690. Its totient is φ = 35184768.

The previous prime is 52777103. The next prime is 52777171. The reversal of 52777161 is 16177725.

52777161 is a `hidden beast` number, since 527 + 7 + 71 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 38192400 + 14584761 = 6180^2 + 3819^2 .

It is not a de Polignac number, because 52777161 - 2⁷ = 52777033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52777171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2932056 + ... + 2932073.

It is an arithmetic number, because the mean of its divisors is an integer number (12705615).

Almost surely, 2^52777161 is an apocalyptic number.

It is an amenable number.

52777161 is a deficient number, since it is larger than the sum of its proper divisors (23456529).

52777161 is a wasteful number, since it uses less digits than its factorization.

52777161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5864135 (or 5864132 counting only the distinct ones).

The product of its digits is 20580, while the sum is 36.

The square root of 52777161 is about 7264.7891228858. The cubic root of 52777161 is about 375.1013912504.

The spelling of 52777161 in words is "fifty-two million, seven hundred seventy-seven thousand, one hundred sixty-one".