55597147 has 8 divisors (see below), whose sum is σ = 57687840. Its totient is φ = 53518080.

The previous prime is 55597133. The next prime is 55597177. The reversal of 55597147 is 74179555.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55597147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55597117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7522 + ... + 12952.

It is an arithmetic number, because the mean of its divisors is an integer number (7210980).

Almost surely, 2^55597147 is an apocalyptic number.

55597147 is a deficient number, since it is larger than the sum of its proper divisors (2090693).

55597147 is a wasteful number, since it uses less digits than its factorization.

55597147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5813.

The product of its digits is 220500, while the sum is 43.

The square root of 55597147 is about 7456.3494419186. The cubic root of 55597147 is about 381.6666110698. Note that the first 4 decimals are identical.

The spelling of 55597147 in words is "fifty-five million, five hundred ninety-seven thousand, one hundred forty-seven".