245242252413 has 24 divisors (see below), whose sum is σ = 357837696216. Its totient is φ = 161834640000.

The previous prime is 245242252403. The next prime is 245242252417. The reversal of 245242252413 is 314252242542.

245242252413 is a `hidden beast` number, since 24 + 524 + 22 + 52 + 41 + 3 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 141456475449 + 103785776964 = 376107^2 + 322158^2 .

It is a de Polignac number, because none of the positive numbers 2^k-245242252413 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245242252417) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3746263 + ... + 3811163.

It is an arithmetic number, because the mean of its divisors is an integer number (14909904009).

Almost surely, 2^245242252413 is an apocalyptic number.

It is an amenable number.

245242252413 is a deficient number, since it is larger than the sum of its proper divisors (112595443803).

245242252413 is a wasteful number, since it uses less digits than its factorization.

245242252413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69165 (or 69162 counting only the distinct ones).

The product of its digits is 153600, while the sum is 36.

Adding to 245242252413 its reverse (314252242542), we get a palindrome (559494494955).

The spelling of 245242252413 in words is "two hundred forty-five billion, two hundred forty-two million, two hundred fifty-two thousand, four hundred thirteen".