53212823 has 4 divisors (see below), whose sum is σ = 55526448. Its totient is φ = 50899200.

The previous prime is 53212813. The next prime is 53212849. The reversal of 53212823 is 32821235.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32821235 = 5 ⋅6564247.

It is a cyclic number.

It is not a de Polignac number, because 53212823 - 2¹⁴ = 53196439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53212792 and 53212801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53212813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1156778 + ... + 1156823.

It is an arithmetic number, because the mean of its divisors is an integer number (13881612).

Almost surely, 2^53212823 is an apocalyptic number.

53212823 is a deficient number, since it is larger than the sum of its proper divisors (2313625).

53212823 is a wasteful number, since it uses less digits than its factorization.

53212823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2313624.

The product of its digits is 2880, while the sum is 26.

The square root of 53212823 is about 7294.7119888314. The cubic root of 53212823 is about 376.1306863323.

The spelling of 53212823 in words is "fifty-three million, two hundred twelve thousand, eight hundred twenty-three".