55563312583 has 8 divisors (see below), whose sum is σ = 56290743936. Its totient is φ = 54837262200.

The previous prime is 55563312569. The next prime is 55563312619. The reversal of 55563312583 is 38521336555.

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 55563312583 - 2¹⁷ = 55563181511 is a prime.

It is a super-2 number, since 2×55563312583² (a number of 22 digits) 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 (55563312503) 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, 264123 + ... + 425308.

It is an arithmetic number, because the mean of its divisors is an integer number (7036342992).

Almost surely, 2^55563312583 is an apocalyptic number.

55563312583 is a deficient number, since it is larger than the sum of its proper divisors (727431353).

55563312583 is an equidigital number, since it uses as much as digits as its factorization.

55563312583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690485.

The product of its digits is 1620000, while the sum is 46.

The spelling of 55563312583 in words is "fifty-five billion, five hundred sixty-three million, three hundred twelve thousand, five hundred eighty-three".