52200146 has 4 divisors (see below), whose sum is σ = 78300222. Its totient is φ = 26100072.

The previous prime is 52200143. The next prime is 52200157. The reversal of 52200146 is 64100225.

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., 45414121 + 6786025 = 6739^2 + 2605^2 .

It is not an unprimeable number, because it can be changed into a prime (52200143) by changing a digit.

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, 13050035 + ... + 13050038.

Almost surely, 2^52200146 is an apocalyptic number.

52200146 is a deficient number, since it is larger than the sum of its proper divisors (26100076).

52200146 is a wasteful number, since it uses less digits than its factorization.

52200146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26100075.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 52200146 is about 7224.9668511350. The cubic root of 52200146 is about 373.7293789960.

The spelling of 52200146 in words is "fifty-two million, two hundred thousand, one hundred forty-six".