55112403 has 8 divisors (see below), whose sum is σ = 73585600. Its totient is φ = 36690408.

The previous prime is 55112399. The next prime is 55112411. The reversal of 55112403 is 30421155.

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

It is not a de Polignac number, because 55112403 - 2² = 55112399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55112403.

It is not an unprimeable number, because it can be changed into a prime (55112413) 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, 10213 + ... + 14646.

It is an arithmetic number, because the mean of its divisors is an integer number (9198200).

Almost surely, 2^55112403 is an apocalyptic number.

55112403 is a deficient number, since it is larger than the sum of its proper divisors (18473197).

55112403 is a wasteful number, since it uses less digits than its factorization.

55112403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25601.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 55112403 is about 7423.7728278821. The cubic root of 55112403 is about 380.5541384366.

Adding to 55112403 its reverse (30421155), we get a palindrome (85533558).

The spelling of 55112403 in words is "fifty-five million, one hundred twelve thousand, four hundred three".