55583559 has 6 divisors (see below), whose sum is σ = 80287376. Its totient is φ = 37055700.

The previous prime is 55583543. The next prime is 55583579. The reversal of 55583559 is 95538555.

It is not a de Polignac number, because 55583559 - 2⁴ = 55583543 is a prime.

It is a super-2 number, since 2×55583559² = 6179064062212962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55583579) 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 5 ways as a sum of consecutive naturals, for example, 3087967 + ... + 3087984.

Almost surely, 2^55583559 is an apocalyptic number.

55583559 is a deficient number, since it is larger than the sum of its proper divisors (24703817).

55583559 is a wasteful number, since it uses less digits than its factorization.

55583559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6175957 (or 6175954 counting only the distinct ones).

The product of its digits is 675000, while the sum is 45.

The square root of 55583559 is about 7455.4382164967. The cubic root of 55583559 is about 381.6355152987.

The spelling of 55583559 in words is "fifty-five million, five hundred eighty-three thousand, five hundred fifty-nine".