53024221 has 4 divisors (see below), whose sum is σ = 54024732. Its totient is φ = 52023712.

The previous prime is 53024143. The next prime is 53024299. The reversal of 53024221 is 12242035.

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

It is an interprime number because it is at equal distance from previous prime (53024143) and next prime (53024299).

It can be written as a sum of positive squares in 2 ways, for example, as 36132121 + 16892100 = 6011^2 + 4110^2 .

It is a cyclic number.

It is not a de Polignac number, because 53024221 - 2¹⁵ = 52991453 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 (53034221) 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, 500176 + ... + 500281.

It is an arithmetic number, because the mean of its divisors is an integer number (13506183).

Almost surely, 2^53024221 is an apocalyptic number.

It is an amenable number.

53024221 is a deficient number, since it is larger than the sum of its proper divisors (1000511).

53024221 is a wasteful number, since it uses less digits than its factorization.

53024221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000510.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 53024221 is about 7281.7732043782. The cubic root of 53024221 is about 375.6857874607.

Adding to 53024221 its reverse (12242035), we get a palindrome (65266256).

The spelling of 53024221 in words is "fifty-three million, twenty-four thousand, two hundred twenty-one".