550401240155 has 32 divisors (see below), whose sum is σ = 718786051200. Its totient is φ = 402177484800.

The previous prime is 550401240149. The next prime is 550401240173. The reversal of 550401240155 is 551042104055.

It is not a de Polignac number, because 550401240155 - 2⁶ = 550401240091 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 4337105 + ... + 4462205.

It is an arithmetic number, because the mean of its divisors is an integer number (22462064100).

Almost surely, 2^550401240155 is an apocalyptic number.

550401240155 is a deficient number, since it is larger than the sum of its proper divisors (168384811045).

550401240155 is a wasteful number, since it uses less digits than its factorization.

550401240155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125831.

The product of its (nonzero) digits is 20000, while the sum is 32.

The spelling of 550401240155 in words is "five hundred fifty billion, four hundred one million, two hundred forty thousand, one hundred fifty-five".