52636145 has 4 divisors (see below), whose sum is σ = 63163380. Its totient is φ = 42108912.

The previous prime is 52636141. The next prime is 52636147. The reversal of 52636145 is 54163625.

52636145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8133904 + 44502241 = 2852^2 + 6671^2 .

It is a cyclic number.

It is not a de Polignac number, because 52636145 - 2² = 52636141 is a prime.

It is a super-2 number, since 2×52636145² = 5541127520922050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52636141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5263610 + ... + 5263619.

It is an arithmetic number, because the mean of its divisors is an integer number (15790845).

Almost surely, 2^52636145 is an apocalyptic number.

It is an amenable number.

52636145 is a deficient number, since it is larger than the sum of its proper divisors (10527235).

52636145 is a wasteful number, since it uses less digits than its factorization.

52636145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10527234.

The product of its digits is 21600, while the sum is 32.

The square root of 52636145 is about 7255.0771877355. The cubic root of 52636145 is about 374.7670137950.

The spelling of 52636145 in words is "fifty-two million, six hundred thirty-six thousand, one hundred forty-five".