48228581 has 4 divisors (see below), whose sum is σ = 48334572. Its totient is φ = 48122592.

The previous prime is 48228553. The next prime is 48228589. The reversal of 48228581 is 18582284.

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

It can be written as a sum of positive squares in 2 ways, for example, as 43428100 + 4800481 = 6590^2 + 2191^2 .

It is a cyclic number.

It is not a de Polignac number, because 48228581 - 2¹⁸ = 47966437 is a prime.

It is a super-2 number, since 2×48228581² = 4651992050547122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48228589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52310 + ... + 53223.

It is an arithmetic number, because the mean of its divisors is an integer number (12083643).

Almost surely, 2^48228581 is an apocalyptic number.

It is an amenable number.

48228581 is a deficient number, since it is larger than the sum of its proper divisors (105991).

48228581 is a wasteful number, since it uses less digits than its factorization.

48228581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105990.

The product of its digits is 40960, while the sum is 38.

The square root of 48228581 is about 6944.6800502255. The cubic root of 48228581 is about 364.0000930845. Note that the first 4 decimals are identical.

The spelling of 48228581 in words is "forty-eight million, two hundred twenty-eight thousand, five hundred eighty-one".