248064509057 has 4 divisors (see below), whose sum is σ = 248145078720. Its totient is φ = 247983939396.

The previous prime is 248064509009. The next prime is 248064509089. The reversal of 248064509057 is 750905460842.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 248064509057 - 2³² = 243769541761 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 248064508996 and 248064509014.

It is not an unprimeable number, because it can be changed into a prime (248064502057) 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, 40280213 + ... + 40286370.

It is an arithmetic number, because the mean of its divisors is an integer number (62036269680).

Almost surely, 2^248064509057 is an apocalyptic number.

It is an amenable number.

248064509057 is a deficient number, since it is larger than the sum of its proper divisors (80569663).

248064509057 is an equidigital number, since it uses as much as digits as its factorization.

248064509057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80569662.

The product of its (nonzero) digits is 2419200, while the sum is 50.

Adding to 248064509057 its reverse (750905460842), we get a palindrome (998969969899).

The spelling of 248064509057 in words is "two hundred forty-eight billion, sixty-four million, five hundred nine thousand, fifty-seven".