52645965 has 16 divisors (see below), whose sum is σ = 87896448. Its totient is φ = 26856896.

The previous prime is 52645963. The next prime is 52646023. The reversal of 52645965 is 56954625.

It is a cyclic number.

It is not a de Polignac number, because 52645965 - 2¹ = 52645963 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52645963) 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, 75954 + ... + 76643.

It is an arithmetic number, because the mean of its divisors is an integer number (5493528).

Almost surely, 2^52645965 is an apocalyptic number.

It is an amenable number.

52645965 is a deficient number, since it is larger than the sum of its proper divisors (35250483).

52645965 is a wasteful number, since it uses less digits than its factorization.

52645965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152628.

The product of its digits is 324000, while the sum is 42.

The square root of 52645965 is about 7255.7539236112. The cubic root of 52645965 is about 374.7903183337.

The spelling of 52645965 in words is "fifty-two million, six hundred forty-five thousand, nine hundred sixty-five".