52820001663 has 16 divisors (see below), whose sum is σ = 82739024256. Its totient is φ = 29549651040.

The previous prime is 52820001593. The next prime is 52820001671. The reversal of 52820001663 is 36610002825.

52820001663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52820001663 - 2¹² = 52819997567 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52820001673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61561345 + ... + 61562202.

It is an arithmetic number, because the mean of its divisors is an integer number (5171189016).

Almost surely, 2^52820001663 is an apocalyptic number.

52820001663 is a deficient number, since it is larger than the sum of its proper divisors (29919022593).

52820001663 is a wasteful number, since it uses less digits than its factorization.

52820001663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123123574.

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 52820001663 in words is "fifty-two billion, eight hundred twenty million, one thousand, six hundred sixty-three".