53030020 has 12 divisors (see below), whose sum is σ = 111363084. Its totient is φ = 21212000.

The previous prime is 53030011. The next prime is 53030041. The reversal of 53030020 is 2003035.

It can be written as a sum of positive squares in 2 ways, for example, as 27060804 + 25969216 = 5202^2 + 5096^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1325731 + ... + 1325770.

It is an arithmetic number, because the mean of its divisors is an integer number (9280257).

Almost surely, 2^53030020 is an apocalyptic number.

It is an amenable number.

53030020 is an abundant number, since it is smaller than the sum of its proper divisors (58333064).

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

53030020 is a wasteful number, since it uses less digits than its factorization.

53030020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2651510 (or 2651508 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 13.

The square root of 53030020 is about 7282.1713794719. The cubic root of 53030020 is about 375.6994826012.

Adding to 53030020 its reverse (2003035), we get a palindrome (55033055).

The spelling of 53030020 in words is "fifty-three million, thirty thousand, twenty".