248991053 has 2 divisors, whose sum is σ = 248991054. Its totient is φ = 248991052.

The previous prime is 248991049. The next prime is 248991059. The reversal of 248991053 is 350199842.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 245956489 + 3034564 = 15683^2 + 1742^2 .

It is a cyclic number.

It is not a de Polignac number, because 248991053 - 2² = 248991049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 248991053.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (248991059) 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 as a sum of consecutive naturals, namely, 124495526 + 124495527.

It is an arithmetic number, because the mean of its divisors is an integer number (124495527).

Almost surely, 2^248991053 is an apocalyptic number.

It is an amenable number.

248991053 is a deficient number, since it is larger than the sum of its proper divisors (1).

248991053 is an equidigital number, since it uses as much as digits as its factorization.

248991053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 248991053 is about 15779.4503389694. The cubic root of 248991053 is about 629.1119199492. Note that the first 3 decimals are identical.

It can be divided in two parts, 24899 and 1053, that added together give a palindrome (25952).

The spelling of 248991053 in words is "two hundred forty-eight million, nine hundred ninety-one thousand, fifty-three".