53021203 has 4 divisors (see below), whose sum is σ = 53377200. Its totient is φ = 52665208.

The previous prime is 53021201. The next prime is 53021219. The reversal of 53021203 is 30212035.

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

It is a cyclic number.

It is not a de Polignac number, because 53021203 - 2¹ = 53021201 is a prime.

It is a super-2 number, since 2×53021203² = 5622495935134418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53021201) 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, 177775 + ... + 178072.

It is an arithmetic number, because the mean of its divisors is an integer number (13344300).

Almost surely, 2^53021203 is an apocalyptic number.

53021203 is a deficient number, since it is larger than the sum of its proper divisors (355997).

53021203 is a wasteful number, since it uses less digits than its factorization.

53021203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355996.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 53021203 is about 7281.5659716849. The cubic root of 53021203 is about 375.6786596412.

Adding to 53021203 its reverse (30212035), we get a palindrome (83233238).

The spelling of 53021203 in words is "fifty-three million, twenty-one thousand, two hundred three".