245553542433545 has 4 divisors (see below), whose sum is σ = 294664250920260. Its totient is φ = 196442833946832.

The previous prime is 245553542433523. The next prime is 245553542433571. The reversal of 245553542433545 is 545334245355542.

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 117858728588176 + 127694813845369 = 10856276^2 + 11300213^2 .

It is a cyclic number.

It is not a de Polignac number, because 245553542433545 - 2¹² = 245553542429449 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24555354243350 + ... + 24555354243359.

It is an arithmetic number, because the mean of its divisors is an integer number (73666062730065).

Almost surely, 2^{245553542433545} is an apocalyptic number.

It is an amenable number.

245553542433545 is a deficient number, since it is larger than the sum of its proper divisors (49110708486715).

245553542433545 is an equidigital number, since it uses as much as digits as its factorization.

245553542433545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49110708486714.

The product of its digits is 432000000, while the sum is 59.

The spelling of 245553542433545 in words is "two hundred forty-five trillion, five hundred fifty-three billion, five hundred forty-two million, four hundred thirty-three thousand, five hundred forty-five".