550121607 has 48 divisors (see below), whose sum is σ = 928279872. Its totient is φ = 307445760.

The previous prime is 550121597. The next prime is 550121617. The reversal of 550121607 is 706121055.

550121607 is a `hidden beast` number, since 5 + 50 + 1 + 2 + 1 + 607 = 666.

It is an interprime number because it is at equal distance from previous prime (550121597) and next prime (550121617).

It is not a de Polignac number, because 550121607 - 2¹⁸ = 549859463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550121617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 987373 + ... + 987929.

It is an arithmetic number, because the mean of its divisors is an integer number (19339164).

Almost surely, 2^550121607 is an apocalyptic number.

550121607 is a deficient number, since it is larger than the sum of its proper divisors (378158265).

550121607 is a wasteful number, since it uses less digits than its factorization.

550121607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888 (or 885 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 550121607 is about 23454.6713257722. The cubic root of 550121607 is about 819.3816511215.

The spelling of 550121607 in words is "five hundred fifty million, one hundred twenty-one thousand, six hundred seven".