53689066 has 4 divisors (see below), whose sum is σ = 80533602. Its totient is φ = 26844532.

The previous prime is 53689057. The next prime is 53689073. The reversal of 53689066 is 66098635.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 53363025 + 326041 = 7305^2 + 571^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13422265 + ... + 13422268.

Almost surely, 2^53689066 is an apocalyptic number.

53689066 is a deficient number, since it is larger than the sum of its proper divisors (26844536).

53689066 is a wasteful number, since it uses less digits than its factorization.

53689066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26844535.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 53689066 is about 7327.2823065581. The cubic root of 53689066 is about 377.2494508678.

The spelling of 53689066 in words is "fifty-three million, six hundred eighty-nine thousand, sixty-six".