55608583 has 4 divisors (see below), whose sum is σ = 56033208. Its totient is φ = 55183960.

The previous prime is 55608577. The next prime is 55608599. The reversal of 55608583 is 38580655.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55608583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55608523) 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, 212116 + ... + 212377.

It is an arithmetic number, because the mean of its divisors is an integer number (14008302).

Almost surely, 2^55608583 is an apocalyptic number.

55608583 is a deficient number, since it is larger than the sum of its proper divisors (424625).

55608583 is a wasteful number, since it uses less digits than its factorization.

55608583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424624.

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 55608583 is about 7457.1162656888. The cubic root of 55608583 is about 381.6927781207.

The spelling of 55608583 in words is "fifty-five million, six hundred eight thousand, five hundred eighty-three".