245305500102405 has 96 divisors (see below), whose sum is σ = 429203271485664. Its totient is φ = 129601865023488.

The previous prime is 245305500102401. The next prime is 245305500102409. The reversal of 245305500102405 is 504201005503542.

245305500102405 is a `hidden beast` number, since 2 + 4 + 5 + 3 + 0 + 5 + 500 + 102 + 40 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (245305500102401) and next prime (245305500102409).

It can be written as a sum of positive squares in 16 ways, for example, as 150916949850276 + 94388550252129 = 12284826^2 + 9715377^2 .

It is not a de Polignac number, because 245305500102405 - 2² = 245305500102401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245305500102405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245305500102401) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 23684990487 + ... + 23685000843.

It is an arithmetic number, because the mean of its divisors is an integer number (4470867411309).

Almost surely, 2^{245305500102405} is an apocalyptic number.

It is an amenable number.

245305500102405 is a deficient number, since it is larger than the sum of its proper divisors (183897771383259).

245305500102405 is a wasteful number, since it uses less digits than its factorization.

245305500102405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20375 (or 20372 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

Adding to 245305500102405 its reverse (504201005503542), we get a palindrome (749506505605947).

The spelling of 245305500102405 in words is "two hundred forty-five trillion, three hundred five billion, five hundred million, one hundred two thousand, four hundred five".