52646538 has 32 divisors (see below), whose sum is σ = 122313600. Its totient is φ = 14794560.

The previous prime is 52646537. The next prime is 52646557. The reversal of 52646538 is 83564625.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 52646496 and 52646505.

It is not an unprimeable number, because it can be changed into a prime (52646537) 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, 7713 + ... + 12836.

It is an arithmetic number, because the mean of its divisors is an integer number (3822300).

Almost surely, 2^52646538 is an apocalyptic number.

52646538 is an abundant number, since it is smaller than the sum of its proper divisors (69667062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52646538 is a wasteful number, since it uses less digits than its factorization.

52646538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20622.

The product of its digits is 172800, while the sum is 39.

The square root of 52646538 is about 7255.7934094074. The cubic root of 52646538 is about 374.7916780711.

The spelling of 52646538 in words is "fifty-two million, six hundred forty-six thousand, five hundred thirty-eight".