245323505225505 has 64 divisors (see below), whose sum is σ = 455304622123008. Its totient is φ = 110477408494080.

The previous prime is 245323505225483. The next prime is 245323505225531. The reversal of 245323505225505 is 505522505323542.

It is not a de Polignac number, because 245323505225505 - 2¹⁷ = 245323505094433 is a prime.

It is a super-2 number, since 2×245323505225505² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 37537236 + ... + 43585445.

It is an arithmetic number, because the mean of its divisors is an integer number (7114134720672).

Almost surely, 2^{245323505225505} is an apocalyptic number.

It is an amenable number.

245323505225505 is a deficient number, since it is larger than the sum of its proper divisors (209981116897503).

245323505225505 is a wasteful number, since it uses less digits than its factorization.

245323505225505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81123126.

The product of its (nonzero) digits is 9000000, while the sum is 48.

The spelling of 245323505225505 in words is "two hundred forty-five trillion, three hundred twenty-three billion, five hundred five million, two hundred twenty-five thousand, five hundred five".