248632057 has 4 divisors (see below), whose sum is σ = 249920500. Its totient is φ = 247343616.

The previous prime is 248632031. The next prime is 248632067. The reversal of 248632057 is 750236842.

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 23001616 + 225630441 = 4796^2 + 15021^2 .

It is a cyclic number.

It is not a de Polignac number, because 248632057 - 2²³ = 240243449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248632067) 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, 643932 + ... + 644317.

It is an arithmetic number, because the mean of its divisors is an integer number (62480125).

Almost surely, 2^248632057 is an apocalyptic number.

It is an amenable number.

248632057 is a deficient number, since it is larger than the sum of its proper divisors (1288443).

248632057 is a wasteful number, since it uses less digits than its factorization.

248632057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288442.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 248632057 is about 15768.0708078065. The cubic root of 248632057 is about 628.8094227441.

Adding to 248632057 its reverse (750236842), we get a palindrome (998868899).

It can be divided in two parts, 2486 and 32057, that added together give a palindrome (34543).

The spelling of 248632057 in words is "two hundred forty-eight million, six hundred thirty-two thousand, fifty-seven".