245248415653 has 4 divisors (see below), whose sum is σ = 245572390540. Its totient is φ = 244924440768.

The previous prime is 245248415623. The next prime is 245248415693. The reversal of 245248415653 is 356514842542.

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 190813459684 + 54434955969 = 436822^2 + 233313^2 .

It is a cyclic number.

It is not a de Polignac number, because 245248415653 - 2¹⁷ = 245248284581 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245248415597 and 245248415606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245248415623) 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, 161986308 + ... + 161987821.

It is an arithmetic number, because the mean of its divisors is an integer number (61393097635).

Almost surely, 2^245248415653 is an apocalyptic number.

It is an amenable number.

245248415653 is a deficient number, since it is larger than the sum of its proper divisors (323974887).

245248415653 is an equidigital number, since it uses as much as digits as its factorization.

245248415653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323974886.

The product of its digits is 4608000, while the sum is 49.

The spelling of 245248415653 in words is "two hundred forty-five billion, two hundred forty-eight million, four hundred fifteen thousand, six hundred fifty-three".