53706665 has 8 divisors (see below), whose sum is σ = 65819520. Its totient is φ = 42050992.

The previous prime is 53706643. The next prime is 53706691. The reversal of 53706665 is 56660735.

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 53706665 - 2⁸ = 53706409 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114035 + ... + 114504.

It is an arithmetic number, because the mean of its divisors is an integer number (8227440).

Almost surely, 2^53706665 is an apocalyptic number.

It is an amenable number.

53706665 is a deficient number, since it is larger than the sum of its proper divisors (12112855).

53706665 is a wasteful number, since it uses less digits than its factorization.

53706665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228591.

The product of its (nonzero) digits is 113400, while the sum is 38.

The square root of 53706665 is about 7328.4831309078. The cubic root of 53706665 is about 377.2906665086.

The spelling of 53706665 in words is "fifty-three million, seven hundred six thousand, six hundred sixty-five".