65552147 has 4 divisors (see below), whose sum is σ = 69002280. Its totient is φ = 62102016.

The previous prime is 65552143. The next prime is 65552161. The reversal of 65552147 is 74125556.

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

It is a cyclic number.

It is not a de Polignac number, because 65552147 - 2² = 65552143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65552141) 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, 1725038 + ... + 1725075.

It is an arithmetic number, because the mean of its divisors is an integer number (17250570).

Almost surely, 2^65552147 is an apocalyptic number.

65552147 is a deficient number, since it is larger than the sum of its proper divisors (3450133).

65552147 is a wasteful number, since it uses less digits than its factorization.

65552147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3450132.

The product of its digits is 42000, while the sum is 35.

The square root of 65552147 is about 8096.4280395740. The cubic root of 65552147 is about 403.2078451373.

The spelling of 65552147 in words is "sixty-five million, five hundred fifty-two thousand, one hundred forty-seven".