245657242005 has 32 divisors (see below), whose sum is σ = 455528613888. Its totient is φ = 110718753600.

The previous prime is 245657241979. The next prime is 245657242007. The reversal of 245657242005 is 500242756542.

It is not a de Polignac number, because 245657242005 - 2³¹ = 243509758357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245657242007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16468551 + ... + 16483460.

It is an arithmetic number, because the mean of its divisors is an integer number (14235269184).

Almost surely, 2^245657242005 is an apocalyptic number.

It is an amenable number.

245657242005 is a deficient number, since it is larger than the sum of its proper divisors (209871371883).

245657242005 is a wasteful number, since it uses less digits than its factorization.

245657242005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32952097.

The product of its (nonzero) digits is 672000, while the sum is 42.

Adding to 245657242005 its reverse (500242756542), we get a palindrome (745899998547).

The spelling of 245657242005 in words is "two hundred forty-five billion, six hundred fifty-seven million, two hundred forty-two thousand, five".