248828557 has 2 divisors, whose sum is σ = 248828558. Its totient is φ = 248828556.

The previous prime is 248828551. The next prime is 248828563. The reversal of 248828557 is 755828842.

It is a balanced prime because it is at equal distance from previous prime (248828551) and next prime (248828563).

It can be written as a sum of positive squares in only one way, i.e., 214886281 + 33942276 = 14659^2 + 5826^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248828557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 248828557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (248828551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124414278 + 124414279.

It is an arithmetic number, because the mean of its divisors is an integer number (124414279).

Almost surely, 2^248828557 is an apocalyptic number.

It is an amenable number.

248828557 is a deficient number, since it is larger than the sum of its proper divisors (1).

248828557 is an equidigital number, since it uses as much as digits as its factorization.

248828557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1433600, while the sum is 49.

The square root of 248828557 is about 15774.3005233196. The cubic root of 248828557 is about 628.9750336153.

The spelling of 248828557 in words is "two hundred forty-eight million, eight hundred twenty-eight thousand, five hundred fifty-seven".