55627817 has 8 divisors (see below), whose sum is σ = 63624576. Its totient is φ = 47643552.

The previous prime is 55627813. The next prime is 55627843. The reversal of 55627817 is 71872655.

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 55627817 - 2² = 55627813 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55627813) 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, 10253 + ... + 14709.

It is an arithmetic number, because the mean of its divisors is an integer number (7953072).

Almost surely, 2^55627817 is an apocalyptic number.

It is an amenable number.

55627817 is a deficient number, since it is larger than the sum of its proper divisors (7996759).

55627817 is a wasteful number, since it uses less digits than its factorization.

55627817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6247.

The product of its digits is 117600, while the sum is 41.

The square root of 55627817 is about 7458.4057948063. The cubic root of 55627817 is about 381.7367799170.

The spelling of 55627817 in words is "fifty-five million, six hundred twenty-seven thousand, eight hundred seventeen".