55055500503 has 8 divisors (see below), whose sum is σ = 73409292528. Its totient is φ = 36702687744.

The previous prime is 55055500477. The next prime is 55055500517. The reversal of 55055500503 is 30500555055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55055500503 - 2⁵ = 55055500471 is a prime.

It is a super-2 number, since 2×55055500503² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55055500583) 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, 101676 + ... + 347057.

It is an arithmetic number, because the mean of its divisors is an integer number (9176161566).

Almost surely, 2^55055500503 is an apocalyptic number.

55055500503 is a deficient number, since it is larger than the sum of its proper divisors (18353792025).

55055500503 is a wasteful number, since it uses less digits than its factorization.

55055500503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489633.

The product of its (nonzero) digits is 46875, while the sum is 33.

The spelling of 55055500503 in words is "fifty-five billion, fifty-five million, five hundred thousand, five hundred three".