550025431065 has 24 divisors (see below), whose sum is σ = 1040048088768. Its totient is φ = 266678996640.

The previous prime is 550025431037. The next prime is 550025431069. The reversal of 550025431065 is 560134520055.

550025431065 is a `hidden beast` number, since 5 + 5 + 0 + 0 + 2 + 543 + 106 + 5 = 666.

It is not a de Polignac number, because 550025431065 - 2⁶ = 550025431001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550025431069) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 555580749 + ... + 555581738.

It is an arithmetic number, because the mean of its divisors is an integer number (43335337032).

Almost surely, 2^550025431065 is an apocalyptic number.

550025431065 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

550025431065 is a deficient number, since it is larger than the sum of its proper divisors (490022657703).

550025431065 is a wasteful number, since it uses less digits than its factorization.

550025431065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111162509 (or 1111162506 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The spelling of 550025431065 in words is "five hundred fifty billion, twenty-five million, four hundred thirty-one thousand, sixty-five".