53666801 has 4 divisors (see below), whose sum is σ = 53681472. Its totient is φ = 53652132.

The previous prime is 53666783. The next prime is 53666803. The reversal of 53666801 is 10866635.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 53666801 - 2¹⁸ = 53404657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53666803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3116 + ... + 10818.

It is an arithmetic number, because the mean of its divisors is an integer number (13420368).

Almost surely, 2^53666801 is an apocalyptic number.

It is an amenable number.

53666801 is a deficient number, since it is larger than the sum of its proper divisors (14671).

53666801 is an equidigital number, since it uses as much as digits as its factorization.

53666801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14670.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 53666801 is about 7325.7628271737. The cubic root of 53666801 is about 377.1972948703.

It can be divided in two parts, 5366 and 6801, that added together give a cube (12167 = 23³).

The spelling of 53666801 in words is "fifty-three million, six hundred sixty-six thousand, eight hundred one".