52865853 has 4 divisors (see below), whose sum is σ = 70487808. Its totient is φ = 35243900.

The previous prime is 52865849. The next prime is 52865861. The reversal of 52865853 is 35856825.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52865853 - 2² = 52865849 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52865653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8810973 + ... + 8810978.

It is an arithmetic number, because the mean of its divisors is an integer number (17621952).

Almost surely, 2^52865853 is an apocalyptic number.

It is an amenable number.

52865853 is a deficient number, since it is larger than the sum of its proper divisors (17621955).

52865853 is a wasteful number, since it uses less digits than its factorization.

52865853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17621954.

The product of its digits is 288000, while the sum is 42.

The square root of 52865853 is about 7270.8907982447. The cubic root of 52865853 is about 375.3113929092.

Subtracting from 52865853 its reverse (35856825), we obtain a triangular number (17009028 = T₅₈₃₂).

The spelling of 52865853 in words is "fifty-two million, eight hundred sixty-five thousand, eight hundred fifty-three".