53022021 has 16 divisors (see below), whose sum is σ = 76312320. Its totient is φ = 32552640.

The previous prime is 53022007. The next prime is 53022029. The reversal of 53022021 is 12022035.

It is not a de Polignac number, because 53022021 - 2¹⁵ = 52989253 is a prime.

It is a super-2 number, since 2×53022021² = 5622669421848882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53022029) 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 15 ways as a sum of consecutive naturals, for example, 18516 + ... + 21186.

It is an arithmetic number, because the mean of its divisors is an integer number (4769520).

Almost surely, 2^53022021 is an apocalyptic number.

It is an amenable number.

53022021 is a deficient number, since it is larger than the sum of its proper divisors (23290299).

53022021 is a wasteful number, since it uses less digits than its factorization.

53022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3196.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 53022021 is about 7281.6221407046. The cubic root of 53022021 is about 375.6805915952.

Adding to 53022021 its reverse (12022035), we get a palindrome (65044056).

The spelling of 53022021 in words is "fifty-three million, twenty-two thousand, twenty-one".