20241555505 has 4 divisors (see below), whose sum is σ = 24289866612. Its totient is φ = 16193244400.

The previous prime is 20241555491. The next prime is 20241555547. The reversal of 20241555505 is 50555514202.

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 2565321201 + 17676234304 = 50649^2 + 132952^2 .

It is not a de Polignac number, because 20241555505 - 2¹¹ = 20241553457 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 3 ways as a sum of consecutive naturals, for example, 2024155546 + ... + 2024155555.

It is an arithmetic number, because the mean of its divisors is an integer number (6072466653).

Almost surely, 2^20241555505 is an apocalyptic number.

It is an amenable number.

20241555505 is a deficient number, since it is larger than the sum of its proper divisors (4048311107).

20241555505 is an equidigital number, since it uses as much as digits as its factorization.

20241555505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4048311106.

The product of its (nonzero) digits is 50000, while the sum is 34.

The spelling of 20241555505 in words is "twenty billion, two hundred forty-one million, five hundred fifty-five thousand, five hundred five".