53224020 has 48 divisors (see below), whose sum is σ = 165587520. Its totient is φ = 14192928.

The previous prime is 53224013. The next prime is 53224021. The reversal of 53224020 is 2042235.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 53223984 and 53224002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53224021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48742 + ... + 49821.

It is an arithmetic number, because the mean of its divisors is an integer number (3449740).

Almost surely, 2^53224020 is an apocalyptic number.

It is an amenable number.

53224020 is an abundant number, since it is smaller than the sum of its proper divisors (112363500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53224020 is a wasteful number, since it uses less digits than its factorization.

53224020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98581 (or 98573 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 53224020 is about 7295.4794222176. The cubic root of 53224020 is about 376.1570661890.

Adding to 53224020 its reverse (2042235), we get a palindrome (55266255).

The spelling of 53224020 in words is "fifty-three million, two hundred twenty-four thousand, twenty".