52228387 has 4 divisors (see below), whose sum is σ = 52458696. Its totient is φ = 51998080.

The previous prime is 52228367. The next prime is 52228399. The reversal of 52228387 is 78382225.

52228387 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 is a cyclic number.

It is not a de Polignac number, because 52228387 - 2¹⁹ = 51704099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52228357) 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, 114814 + ... + 115267.

It is an arithmetic number, because the mean of its divisors is an integer number (13114674).

Almost surely, 2^52228387 is an apocalyptic number.

52228387 is a deficient number, since it is larger than the sum of its proper divisors (230309).

52228387 is a wasteful number, since it uses less digits than its factorization.

52228387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230308.

The product of its digits is 53760, while the sum is 37.

The square root of 52228387 is about 7226.9209902973. The cubic root of 52228387 is about 373.7967644307.

The spelling of 52228387 in words is "fifty-two million, two hundred twenty-eight thousand, three hundred eighty-seven".