53123303 has 4 divisors (see below), whose sum is σ = 53153568. Its totient is φ = 53093040.

The previous prime is 53123281. The next prime is 53123309. The reversal of 53123303 is 30332135.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53123303 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 (53123309) 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, 12326 + ... + 16067.

It is an arithmetic number, because the mean of its divisors is an integer number (13288392).

Almost surely, 2^53123303 is an apocalyptic number.

53123303 is a deficient number, since it is larger than the sum of its proper divisors (30265).

53123303 is a wasteful number, since it uses less digits than its factorization.

53123303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30264.

The product of its (nonzero) digits is 810, while the sum is 20.

The square root of 53123303 is about 7288.5734543874. The cubic root of 53123303 is about 375.9196462326.

Adding to 53123303 its reverse (30332135), we get a palindrome (83455438).

The spelling of 53123303 in words is "fifty-three million, one hundred twenty-three thousand, three hundred three".