53204213 has 4 divisors (see below), whose sum is σ = 53255328. Its totient is φ = 53153100.

The previous prime is 53204197. The next prime is 53204251. The reversal of 53204213 is 31240235.

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 53204213 - 2⁴ = 53204197 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 (53204273) 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, 23963 + ... + 26088.

It is an arithmetic number, because the mean of its divisors is an integer number (13313832).

Almost surely, 2^53204213 is an apocalyptic number.

It is an amenable number.

53204213 is a deficient number, since it is larger than the sum of its proper divisors (51115).

53204213 is a wasteful number, since it uses less digits than its factorization.

53204213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51114.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 53204213 is about 7294.1218114314. The cubic root of 53204213 is about 376.1103988671.

Adding to 53204213 its reverse (31240235), we get a palindrome (84444448).

The spelling of 53204213 in words is "fifty-three million, two hundred four thousand, two hundred thirteen".