52228787 has 4 divisors (see below), whose sum is σ = 56246400. Its totient is φ = 48211176.

The previous prime is 52228751. The next prime is 52228819. The reversal of 52228787 is 78782225.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 52228787 - 2¹⁸ = 51966643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52228727) 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, 2008787 + ... + 2008812.

It is an arithmetic number, because the mean of its divisors is an integer number (14061600).

Almost surely, 2^52228787 is an apocalyptic number.

52228787 is a deficient number, since it is larger than the sum of its proper divisors (4017613).

52228787 is a wasteful number, since it uses less digits than its factorization.

52228787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4017612.

The product of its digits is 125440, while the sum is 41.

The square root of 52228787 is about 7226.9486645472. The cubic root of 52228787 is about 373.7977186903.

The spelling of 52228787 in words is "fifty-two million, two hundred twenty-eight thousand, seven hundred eighty-seven".