52017761 has 4 divisors (see below), whose sum is σ = 52036500. Its totient is φ = 51999024.

The previous prime is 52017737. The next prime is 52017769. The reversal of 52017761 is 16771025.

52017761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 37149025 + 14868736 = 6095^2 + 3856^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52017761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52017769) 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 3 ways as a sum of consecutive naturals, for example, 4286 + ... + 11063.

It is an arithmetic number, because the mean of its divisors is an integer number (13009125).

Almost surely, 2^52017761 is an apocalyptic number.

It is an amenable number.

52017761 is a deficient number, since it is larger than the sum of its proper divisors (18739).

52017761 is a wasteful number, since it uses less digits than its factorization.

52017761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18738.

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 52017761 is about 7212.3339495617. Note that the first 3 decimals coincide. The cubic root of 52017761 is about 373.2936064410.

Adding to 52017761 its reverse (16771025), we get a palindrome (68788786).

It can be divided in two parts, 520 and 17761, that added together give a palindrome (18281).

The spelling of 52017761 in words is "fifty-two million, seventeen thousand, seven hundred sixty-one".