52200145 has 16 divisors (see below), whose sum is σ = 65241360. Its totient is φ = 40045824.

The previous prime is 52200143. The next prime is 52200157. The reversal of 52200145 is 54100225.

It can be written as a sum of positive squares in 8 ways, for example, as 3814209 + 48385936 = 1953^2 + 6956^2 .

It is a cyclic number.

It is not a de Polignac number, because 52200145 - 2¹ = 52200143 is a prime.

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 in 15 ways as a sum of consecutive naturals, for example, 21619 + ... + 23911.

It is an arithmetic number, because the mean of its divisors is an integer number (4077585).

Almost surely, 2^52200145 is an apocalyptic number.

It is an amenable number.

52200145 is a deficient number, since it is larger than the sum of its proper divisors (13041215).

52200145 is a wasteful number, since it uses less digits than its factorization.

52200145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2484.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 52200145 is about 7224.9667819306. The cubic root of 52200145 is about 373.7293766095.

The spelling of 52200145 in words is "fifty-two million, two hundred thousand, one hundred forty-five".