550075905 has 12 divisors (see below), whose sum is σ = 953464980. Its totient is φ = 293373792.

The previous prime is 550075901. The next prime is 550075927. The reversal of 550075905 is 509570055.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 97535376 + 452540529 = 9876^2 + 21273^2 .

It is not a de Polignac number, because 550075905 - 2² = 550075901 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 550075905.

It is not an unprimeable number, because it can be changed into a prime (550075901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6111910 + ... + 6111999.

It is an arithmetic number, because the mean of its divisors is an integer number (79455415).

Almost surely, 2^550075905 is an apocalyptic number.

It is an amenable number.

550075905 is a deficient number, since it is larger than the sum of its proper divisors (403389075).

550075905 is a wasteful number, since it uses less digits than its factorization.

550075905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12223920 (or 12223917 counting only the distinct ones).

The product of its (nonzero) digits is 39375, while the sum is 36.

The square root of 550075905 is about 23453.6970433235. The cubic root of 550075905 is about 819.3589601281.

The spelling of 550075905 in words is "five hundred fifty million, seventy-five thousand, nine hundred five".