53600066 has 32 divisors (see below), whose sum is σ = 89350128. Its totient is φ = 23961600.

The previous prime is 53600003. The next prime is 53600077. The reversal of 53600066 is 66000635.

It can be written as a sum of positive squares in 8 ways, for example, as 39000025 + 14600041 = 6245^2 + 3821^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133466 + ... + 133866.

Almost surely, 2^53600066 is an apocalyptic number.

53600066 is a deficient number, since it is larger than the sum of its proper divisors (35750062).

53600066 is a wasteful number, since it uses less digits than its factorization.

53600066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 53600066 is about 7321.2065945444. The cubic root of 53600066 is about 377.0408809597.

The spelling of 53600066 in words is "fifty-three million, six hundred thousand, sixty-six".