53242224021 has 32 divisors (see below), whose sum is σ = 90833740800. Its totient is φ = 30191868720.

The previous prime is 53242224017. The next prime is 53242224047. The reversal of 53242224021 is 12042224235.

53242224021 is a `hidden beast` number, since 5 + 32 + 4 + 222 + 402 + 1 = 666.

It is not a de Polignac number, because 53242224021 - 2² = 53242224017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53242224421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1050451 + ... + 1099968.

It is an arithmetic number, because the mean of its divisors is an integer number (2838554400).

Almost surely, 2^53242224021 is an apocalyptic number.

It is an amenable number.

53242224021 is a deficient number, since it is larger than the sum of its proper divisors (37591516779).

53242224021 is a wasteful number, since it uses less digits than its factorization.

53242224021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150566 (or 2150560 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 53242224021 its reverse (12042224235), we get a palindrome (65284448256).

The spelling of 53242224021 in words is "fifty-three billion, two hundred forty-two million, two hundred twenty-four thousand, twenty-one".