52228791 has 12 divisors (see below), whose sum is σ = 78721968. Its totient is φ = 33305184.

The previous prime is 52228751. The next prime is 52228819. The reversal of 52228791 is 19782225.

It is not a de Polignac number, because 52228791 - 2⁶ = 52228727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52228741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125950 + ... + 126363.

It is an arithmetic number, because the mean of its divisors is an integer number (6560164).

Almost surely, 2^52228791 is an apocalyptic number.

52228791 is a deficient number, since it is larger than the sum of its proper divisors (26493177).

52228791 is a wasteful number, since it uses less digits than its factorization.

52228791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252342 (or 252339 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 52228791 is about 7226.9489412891. The cubic root of 52228791 is about 373.7977282329.

The spelling of 52228791 in words is "fifty-two million, two hundred twenty-eight thousand, seven hundred ninety-one".