55500003 has 12 divisors (see below), whose sum is σ = 86333520. Its totient is φ = 34153776.

The previous prime is 55499993. The next prime is 55500031. The reversal of 55500003 is 30000555.

It is not a de Polignac number, because 55500003 - 2¹⁰ = 55498979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55500803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 237063 + ... + 237296.

It is an arithmetic number, because the mean of its divisors is an integer number (7194460).

Almost surely, 2^55500003 is an apocalyptic number.

55500003 is a deficient number, since it is larger than the sum of its proper divisors (30833517).

55500003 is a wasteful number, since it uses less digits than its factorization.

55500003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474378 (or 474375 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 18.

The square root of 55500003 is about 7449.8324142225. The cubic root of 55500003 is about 381.4441881655. Note that the first 3 decimals are identical.

Adding to 55500003 its reverse (30000555), we get a palindrome (85500558).

The spelling of 55500003 in words is "fifty-five million, five hundred thousand, three".