55107503 has 8 divisors (see below), whose sum is σ = 60404736. Its totient is φ = 49858200.

The previous prime is 55107499. The next prime is 55107509. The reversal of 55107503 is 30570155.

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

It is a cyclic number.

It is not a de Polignac number, because 55107503 - 2² = 55107499 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 (55107509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9551 + ... + 14192.

It is an arithmetic number, because the mean of its divisors is an integer number (7550592).

Almost surely, 2^55107503 is an apocalyptic number.

55107503 is a deficient number, since it is larger than the sum of its proper divisors (5297233).

55107503 is a wasteful number, since it uses less digits than its factorization.

55107503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23965.

The product of its (nonzero) digits is 2625, while the sum is 26.

The square root of 55107503 is about 7423.4427996719. The cubic root of 55107503 is about 380.5428598468.

Adding to 55107503 its reverse (30570155), we get a palindrome (85677658).

The spelling of 55107503 in words is "fifty-five million, one hundred seven thousand, five hundred three".