55847555 has 16 divisors (see below), whose sum is σ = 71519520. Its totient is φ = 41741568.

The previous prime is 55847551. The next prime is 55847557. The reversal of 55847555 is 55574855.

It is a cyclic number.

It is not a de Polignac number, because 55847555 - 2² = 55847551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55847551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2909 + ... + 10961.

It is an arithmetic number, because the mean of its divisors is an integer number (4469970).

Almost surely, 2^55847555 is an apocalyptic number.

55847555 is a deficient number, since it is larger than the sum of its proper divisors (15671965).

55847555 is a wasteful number, since it uses less digits than its factorization.

55847555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8150.

The product of its digits is 700000, while the sum is 44.

The square root of 55847555 is about 7473.1221721580. The cubic root of 55847555 is about 382.2387582077.

The spelling of 55847555 in words is "fifty-five million, eight hundred forty-seven thousand, five hundred fifty-five".