55801003 has 4 divisors (see below), whose sum is σ = 56034720. Its totient is φ = 55567288.

The previous prime is 55801001. The next prime is 55801007. The reversal of 55801003 is 30010855.

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

It is a cyclic number.

It is not a de Polignac number, because 55801003 - 2¹ = 55801001 is a prime.

It is a super-3 number, since 3×55801003³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55801001) 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, 116500 + ... + 116977.

It is an arithmetic number, because the mean of its divisors is an integer number (14008680).

Almost surely, 2^55801003 is an apocalyptic number.

55801003 is a deficient number, since it is larger than the sum of its proper divisors (233717).

55801003 is a wasteful number, since it uses less digits than its factorization.

55801003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233716.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 55801003 is about 7470.0068942405. The cubic root of 55801003 is about 382.1325230285.

Adding to 55801003 its reverse (30010855), we get a palindrome (85811858).

The spelling of 55801003 in words is "fifty-five million, eight hundred one thousand, three".