52208857 has 4 divisors (see below), whose sum is σ = 52343460. Its totient is φ = 52074256.

The previous prime is 52208851. The next prime is 52208881. The reversal of 52208857 is 75880225.

52208857 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 25210441 + 26998416 = 5021^2 + 5196^2 .

It is a cyclic number.

It is not a de Polignac number, because 52208857 - 2¹⁹ = 51684569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52208851) 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, 66718 + ... + 67495.

It is an arithmetic number, because the mean of its divisors is an integer number (13085865).

Almost surely, 2^52208857 is an apocalyptic number.

It is an amenable number.

52208857 is a deficient number, since it is larger than the sum of its proper divisors (134603).

52208857 is a wasteful number, since it uses less digits than its factorization.

52208857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134602.

The product of its (nonzero) digits is 44800, while the sum is 37.

The square root of 52208857 is about 7225.5696661232. The cubic root of 52208857 is about 373.7501667766.

The spelling of 52208857 in words is "fifty-two million, two hundred eight thousand, eight hundred fifty-seven".