53666363 has 8 divisors (see below), whose sum is σ = 55587840. Its totient is φ = 51756840.

The previous prime is 53666357. The next prime is 53666381. The reversal of 53666363 is 36366635.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53666363 - 2¹⁴ = 53649979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53666323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6698 + ... + 12336.

It is an arithmetic number, because the mean of its divisors is an integer number (6948480).

Almost surely, 2^53666363 is an apocalyptic number.

53666363 is a deficient number, since it is larger than the sum of its proper divisors (1921477).

53666363 is a wasteful number, since it uses less digits than its factorization.

53666363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5977.

The product of its digits is 174960, while the sum is 38.

The square root of 53666363 is about 7325.7329326150. The cubic root of 53666363 is about 377.1962687060.

The spelling of 53666363 in words is "fifty-three million, six hundred sixty-six thousand, three hundred sixty-three".