505890226 has 12 divisors (see below), whose sum is σ = 777800106. Its totient is φ = 246774080.

The previous prime is 505890191. The next prime is 505890251. The reversal of 505890226 is 622098505.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 148718025 + 357172201 = 12195^2 + 18899^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71875 + ... + 78598.

Almost surely, 2^505890226 is an apocalyptic number.

505890226 is a deficient number, since it is larger than the sum of its proper divisors (271909880).

505890226 is a wasteful number, since it uses less digits than its factorization.

505890226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150557 (or 150516 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 505890226 is about 22492.0036012802. The cubic root of 505890226 is about 796.8050836641.

The spelling of 505890226 in words is "five hundred five million, eight hundred ninety thousand, two hundred twenty-six".