52312261 has 8 divisors (see below), whose sum is σ = 53163000. Its totient is φ = 51468480.

The previous prime is 52312231. The next prime is 52312279. The reversal of 52312261 is 16221325.

52312261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8673025 + 43639236 = 2945^2 + 6606^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52312261 - 2⁵ = 52312229 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 (52312231) 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 7 ways as a sum of consecutive naturals, for example, 14631 + ... + 17851.

It is an arithmetic number, because the mean of its divisors is an integer number (6645375).

Almost surely, 2^52312261 is an apocalyptic number.

It is an amenable number.

52312261 is a deficient number, since it is larger than the sum of its proper divisors (850739).

52312261 is a wasteful number, since it uses less digits than its factorization.

52312261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3479.

The product of its digits is 720, while the sum is 22.

The square root of 52312261 is about 7232.7215486288. The cubic root of 52312261 is about 373.9967518568.

Adding to 52312261 its reverse (16221325), we get a palindrome (68533586).

The spelling of 52312261 in words is "fifty-two million, three hundred twelve thousand, two hundred sixty-one".