53523133 has 4 divisors (see below), whose sum is σ = 56340160. Its totient is φ = 50706108.

The previous prime is 53523121. The next prime is 53523149. The reversal of 53523133 is 33132535.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53523133 - 2⁹ = 53522621 is a prime.

It is a super-2 number, since 2×53523133² = 5729451532271378, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53523098 and 53523107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53523193) 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, 1408485 + ... + 1408522.

It is an arithmetic number, because the mean of its divisors is an integer number (14085040).

Almost surely, 2^53523133 is an apocalyptic number.

It is an amenable number.

53523133 is a deficient number, since it is larger than the sum of its proper divisors (2817027).

53523133 is a wasteful number, since it uses less digits than its factorization.

53523133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817026.

The product of its digits is 4050, while the sum is 25.

The square root of 53523133 is about 7315.9505875860. The cubic root of 53523133 is about 376.8604037243.

Adding to 53523133 its reverse (33132535), we get a palindrome (86655668).

The spelling of 53523133 in words is "fifty-three million, five hundred twenty-three thousand, one hundred thirty-three".