248473745 has 16 divisors (see below), whose sum is σ = 324423120. Its totient is φ = 181592064.

The previous prime is 248473739. The next prime is 248473747. The reversal of 248473745 is 547374842.

It can be written as a sum of positive squares in 8 ways, for example, as 17707264 + 230766481 = 4208^2 + 15191^2 .

It is a cyclic number.

It is not a de Polignac number, because 248473745 - 2²⁴ = 231696529 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 248473696 and 248473705.

It is not an unprimeable number, because it can be changed into a prime (248473747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13400 + ... + 26009.

It is an arithmetic number, because the mean of its divisors is an integer number (20276445).

Almost surely, 2^248473745 is an apocalyptic number.

It is an amenable number.

248473745 is a deficient number, since it is larger than the sum of its proper divisors (75949375).

248473745 is a wasteful number, since it uses less digits than its factorization.

248473745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39524.

The product of its digits is 752640, while the sum is 44.

The square root of 248473745 is about 15763.0499904048. The cubic root of 248473745 is about 628.6759333696.

The spelling of 248473745 in words is "two hundred forty-eight million, four hundred seventy-three thousand, seven hundred forty-five".