55598567 has 16 divisors (see below), whose sum is σ = 59382720. Its totient is φ = 51946752.

The previous prime is 55598563. The next prime is 55598639. The reversal of 55598567 is 76589555.

It is a cyclic number.

It is not a de Polignac number, because 55598567 - 2² = 55598563 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 (55598563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321293 + ... + 321465.

It is an arithmetic number, because the mean of its divisors is an integer number (3711420).

Almost surely, 2^55598567 is an apocalyptic number.

55598567 is a deficient number, since it is larger than the sum of its proper divisors (3784153).

55598567 is a wasteful number, since it uses less digits than its factorization.

55598567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442.

The product of its digits is 1890000, while the sum is 50.

The square root of 55598567 is about 7456.4446621698. Note that the first 3 decimals coincide. The cubic root of 55598567 is about 381.6698604090.

It can be divided in two parts, 55598 and 567, that added together give a palindrome (56165).

The spelling of 55598567 in words is "fifty-five million, five hundred ninety-eight thousand, five hundred sixty-seven".