53302020 has 48 divisors (see below), whose sum is σ = 154065408. Its totient is φ = 13754880.

The previous prime is 53301991. The next prime is 53302031. The reversal of 53302020 is 2020335.

It is a super-2 number, since 2×53302020² = 5682210672160800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 12469 + ... + 16188.

It is an arithmetic number, because the mean of its divisors is an integer number (3209696).

Almost surely, 2^53302020 is an apocalyptic number.

It is an amenable number.

53302020 is an abundant number, since it is smaller than the sum of its proper divisors (100763388).

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

53302020 is a wasteful number, since it uses less digits than its factorization.

53302020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28700 (or 28698 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 15.

The square root of 53302020 is about 7300.8232412516. The cubic root of 53302020 is about 376.3407296932.

Adding to 53302020 its reverse (2020335), we get a palindrome (55322355).

The spelling of 53302020 in words is "fifty-three million, three hundred two thousand, twenty".