53320066 has 8 divisors (see below), whose sum is σ = 80422524. Its totient is φ = 26512560.

The previous prime is 53320051. The next prime is 53320079. The reversal of 53320066 is 66002335.

It can be written as a sum of positive squares in 2 ways, for example, as 53217025 + 103041 = 7295^2 + 321^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 53320066.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73285 + ... + 74008.

Almost surely, 2^53320066 is an apocalyptic number.

53320066 is a deficient number, since it is larger than the sum of its proper divisors (27102458).

53320066 is a wasteful number, since it uses less digits than its factorization.

53320066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147476.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 53320066 is about 7302.0590246861. The cubic root of 53320066 is about 376.3831963672.

The spelling of 53320066 in words is "fifty-three million, three hundred twenty thousand, sixty-six".