53820266 has 8 divisors (see below), whose sum is σ = 85479300. Its totient is φ = 25327168.

The previous prime is 53820257. The next prime is 53820287. The reversal of 53820266 is 66202835.

It can be written as a sum of positive squares in 2 ways, for example, as 44609041 + 9211225 = 6679^2 + 3035^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 791441 + ... + 791508.

Almost surely, 2^53820266 is an apocalyptic number.

53820266 is a deficient number, since it is larger than the sum of its proper divisors (31659034).

53820266 is a wasteful number, since it uses less digits than its factorization.

53820266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582968.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 53820266 is about 7336.2296856083. The cubic root of 53820266 is about 377.5564957914.

The spelling of 53820266 in words is "fifty-three million, eight hundred twenty thousand, two hundred sixty-six".