248563541 has 4 divisors (see below), whose sum is σ = 248655084. Its totient is φ = 248472000.

The previous prime is 248563489. The next prime is 248563547. The reversal of 248563541 is 145365842.

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 88642225 + 159921316 = 9415^2 + 12646^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248563541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 248563495 and 248563504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248563547) 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, 41570 + ... + 47171.

It is an arithmetic number, because the mean of its divisors is an integer number (62163771).

Almost surely, 2^248563541 is an apocalyptic number.

It is an amenable number.

248563541 is a deficient number, since it is larger than the sum of its proper divisors (91543).

248563541 is an equidigital number, since it uses as much as digits as its factorization.

248563541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91542.

The product of its digits is 115200, while the sum is 38.

The square root of 248563541 is about 15765.8980397566. The cubic root of 248563541 is about 628.7516567088.

The spelling of 248563541 in words is "two hundred forty-eight million, five hundred sixty-three thousand, five hundred forty-one".