53511103 has 4 divisors (see below), whose sum is σ = 53594968. Its totient is φ = 53427240.

The previous prime is 53511097. The next prime is 53511127. The reversal of 53511103 is 30111535.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53511103 - 2⁵ = 53511071 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 (53511173) 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, 40968 + ... + 42253.

It is an arithmetic number, because the mean of its divisors is an integer number (13398742).

Almost surely, 2^53511103 is an apocalyptic number.

53511103 is a deficient number, since it is larger than the sum of its proper divisors (83865).

53511103 is an equidigital number, since it uses as much as digits as its factorization.

53511103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83864.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 53511103 is about 7315.1283652442. The cubic root of 53511103 is about 376.8321668972.

Adding to 53511103 its reverse (30111535), we get a palindrome (83622638).

The spelling of 53511103 in words is "fifty-three million, five hundred eleven thousand, one hundred three".