53130220 has 72 divisors (see below), whose sum is σ = 131891760. Its totient is φ = 17821440.

The previous prime is 53130199. The next prime is 53130247. The reversal of 53130220 is 2203135.

It is a junction number, because it is equal to n+sod(n) for n = 53130194 and 53130203.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36466 + ... + 37894.

It is an arithmetic number, because the mean of its divisors is an integer number (1831830).

Almost surely, 2^53130220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53130220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65945880).

53130220 is an abundant number, since it is smaller than the sum of its proper divisors (78761540).

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

53130220 is a wasteful number, since it uses less digits than its factorization.

53130220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475 (or 1460 counting only the distinct ones).

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

The square root of 53130220 is about 7289.0479488065. The cubic root of 53130220 is about 375.9359612532.

Adding to 53130220 its reverse (2203135), we get a palindrome (55333355).

The spelling of 53130220 in words is "fifty-three million, one hundred thirty thousand, two hundred twenty".