53723133 has 6 divisors (see below), whose sum is σ = 77600094. Its totient is φ = 35815416.

The previous prime is 53723129. The next prime is 53723183. The reversal of 53723133 is 33132735.

It can be written as a sum of positive squares in only one way, i.e., 37417689 + 16305444 = 6117^2 + 4038^2 .

It is not a de Polignac number, because 53723133 - 2² = 53723129 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53723097 and 53723106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53723123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2984610 + ... + 2984627.

It is an arithmetic number, because the mean of its divisors is an integer number (12933349).

Almost surely, 2^53723133 is an apocalyptic number.

It is an amenable number.

53723133 is a deficient number, since it is larger than the sum of its proper divisors (23876961).

53723133 is a wasteful number, since it uses less digits than its factorization.

53723133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5969243 (or 5969240 counting only the distinct ones).

The product of its digits is 5670, while the sum is 27.

The square root of 53723133 is about 7329.6066060874. The cubic root of 53723133 is about 377.3292252720.

Adding to 53723133 its reverse (33132735), we get a palindrome (86855868).

It can be divided in two parts, 537 and 23133, that multiplied together give a palindrome (12422421).

The spelling of 53723133 in words is "fifty-three million, seven hundred twenty-three thousand, one hundred thirty-three".