53220630 has 16 divisors (see below), whose sum is σ = 127729584. Its totient is φ = 14192160.

The previous prime is 53220619. The next prime is 53220631. The reversal of 53220630 is 3602235.

It is a junction number, because it is equal to n+sod(n) for n = 53220597 and 53220606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53220631) 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 7 ways as a sum of consecutive naturals, for example, 886981 + ... + 887040.

It is an arithmetic number, because the mean of its divisors is an integer number (7983099).

Almost surely, 2^53220630 is an apocalyptic number.

53220630 is an abundant number, since it is smaller than the sum of its proper divisors (74508954).

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

53220630 is a wasteful number, since it uses less digits than its factorization.

53220630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774031.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 53220630 is about 7295.2470828616. The cubic root of 53220630 is about 376.1490798229.

Adding to 53220630 its reverse (3602235), we get a palindrome (56822865).

The spelling of 53220630 in words is "fifty-three million, two hundred twenty thousand, six hundred thirty".