20242550555 has 16 divisors (see below), whose sum is σ = 24822319104. Its totient is φ = 15840269280.

The previous prime is 20242550519. The next prime is 20242550561. The reversal of 20242550555 is 55505524202.

It is not a de Polignac number, because 20242550555 - 2¹⁶ = 20242485019 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 (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394850 + ... + 443160.

It is an arithmetic number, because the mean of its divisors is an integer number (1551394944).

Almost surely, 2^20242550555 is an apocalyptic number.

20242550555 is a deficient number, since it is larger than the sum of its proper divisors (4579768549).

20242550555 is a wasteful number, since it uses less digits than its factorization.

20242550555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50146.

The product of its (nonzero) digits is 100000, while the sum is 35.

The spelling of 20242550555 in words is "twenty billion, two hundred forty-two million, five hundred fifty thousand, five hundred fifty-five".