52020266 has 4 divisors (see below), whose sum is σ = 78030402. Its totient is φ = 26010132.

The previous prime is 52020259. The next prime is 52020281. The reversal of 52020266 is 66202025.

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 only one way, i.e., 51912025 + 108241 = 7205^2 + 329^2 .

It is a super-2 number, since 2×52020266² = 5412216149421512, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 13005065 + ... + 13005068.

Almost surely, 2^52020266 is an apocalyptic number.

52020266 is a deficient number, since it is larger than the sum of its proper divisors (26010136).

52020266 is a wasteful number, since it uses less digits than its factorization.

52020266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26010135.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 52020266 is about 7212.5076083149. The cubic root of 52020266 is about 373.2995985320.

The spelling of 52020266 in words is "fifty-two million, twenty thousand, two hundred sixty-six".