52866157 has 4 divisors (see below), whose sum is σ = 53216416. Its totient is φ = 52515900.

The previous prime is 52866133. The next prime is 52866161. The reversal of 52866157 is 75166825.

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 52866157 - 2¹¹ = 52864109 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 (52866197) 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, 174903 + ... + 175204.

It is an arithmetic number, because the mean of its divisors is an integer number (13304104).

Almost surely, 2^52866157 is an apocalyptic number.

It is an amenable number.

52866157 is a deficient number, since it is larger than the sum of its proper divisors (350259).

52866157 is a wasteful number, since it uses less digits than its factorization.

52866157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350258.

The product of its digits is 100800, while the sum is 40.

The square root of 52866157 is about 7270.9117034936. The cubic root of 52866157 is about 375.3121123052.

The spelling of 52866157 in words is "fifty-two million, eight hundred sixty-six thousand, one hundred fifty-seven".