550612145 has 4 divisors (see below), whose sum is σ = 660734580. Its totient is φ = 440489712.

The previous prime is 550612141. The next prime is 550612151. The reversal of 550612145 is 541216055.

It is a happy number.

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 89264704 + 461347441 = 9448^2 + 21479^2 .

It is a cyclic number.

It is not a de Polignac number, because 550612145 - 2² = 550612141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550612141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55061210 + ... + 55061219.

It is an arithmetic number, because the mean of its divisors is an integer number (165183645).

Almost surely, 2^550612145 is an apocalyptic number.

It is an amenable number.

550612145 is a deficient number, since it is larger than the sum of its proper divisors (110122435).

550612145 is a wasteful number, since it uses less digits than its factorization.

550612145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110122434.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 550612145 is about 23465.1261449838. The cubic root of 550612145 is about 819.6251236086.

The spelling of 550612145 in words is "five hundred fifty million, six hundred twelve thousand, one hundred forty-five".