55325503 has 4 divisors (see below), whose sum is σ = 55344568. Its totient is φ = 55306440.

The previous prime is 55325489. The next prime is 55325507. The reversal of 55325503 is 30552355.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30552355 = 5 ⋅6110471.

It is a cyclic number.

It is not a de Polignac number, because 55325503 - 2⁹ = 55324991 is a prime.

It is a super-2 number, since 2×55325503² = 6121822564406018, which 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 (55325507) 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, 4176 + ... + 11317.

It is an arithmetic number, because the mean of its divisors is an integer number (13836142).

Almost surely, 2^55325503 is an apocalyptic number.

55325503 is a deficient number, since it is larger than the sum of its proper divisors (19065).

55325503 is a wasteful number, since it uses less digits than its factorization.

55325503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19064.

The product of its (nonzero) digits is 11250, while the sum is 28.

The square root of 55325503 is about 7438.1115210785. Note that the first 3 decimals coincide. The cubic root of 55325503 is about 381.0439966368.

Adding to 55325503 its reverse (30552355), we get a palindrome (85877858).

The spelling of 55325503 in words is "fifty-five million, three hundred twenty-five thousand, five hundred three".