245443031555 has 16 divisors (see below), whose sum is σ = 299609731488. Its totient is φ = 192974400000.

The previous prime is 245443031501. The next prime is 245443031569. The reversal of 245443031555 is 555130344542.

It is a de Polignac number, because none of the positive numbers 2^k-245443031555 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31280 + ... + 701330.

It is an arithmetic number, because the mean of its divisors is an integer number (18725608218).

Almost surely, 2^245443031555 is an apocalyptic number.

245443031555 is a deficient number, since it is larger than the sum of its proper divisors (54166699933).

245443031555 is a wasteful number, since it uses less digits than its factorization.

245443031555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671318.

The product of its (nonzero) digits is 720000, while the sum is 41.

The spelling of 245443031555 in words is "two hundred forty-five billion, four hundred forty-three million, thirty-one thousand, five hundred fifty-five".