53020231 has 4 divisors (see below), whose sum is σ = 57840264. Its totient is φ = 48200200.

The previous prime is 53020217. The next prime is 53020271. The reversal of 53020231 is 13202035.

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 53020231 - 2¹³ = 53012039 is a prime.

It is a super-2 number, since 2×53020231² = 5622289790586722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53020211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2410000 + ... + 2410021.

It is an arithmetic number, because the mean of its divisors is an integer number (14460066).

Almost surely, 2^53020231 is an apocalyptic number.

53020231 is a deficient number, since it is larger than the sum of its proper divisors (4820033).

53020231 is a wasteful number, since it uses less digits than its factorization.

53020231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4820032.

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

The square root of 53020231 is about 7281.4992274943. The cubic root of 53020231 is about 375.6763639440.

Adding to 53020231 its reverse (13202035), we get a palindrome (66222266).

The spelling of 53020231 in words is "fifty-three million, twenty thousand, two hundred thirty-one".