53320620 has 96 divisors (see below), whose sum is σ = 156119040. Its totient is φ = 13582080.

The previous prime is 53320613. The next prime is 53320621. The reversal of 53320620 is 2602335.

It is not an unprimeable number, because it can be changed into a prime (53320621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 202609 + ... + 202871.

It is an arithmetic number, because the mean of its divisors is an integer number (1626240).

Almost surely, 2^53320620 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 53320620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78059520).

53320620 is an abundant number, since it is smaller than the sum of its proper divisors (102798420).

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

53320620 is a wasteful number, since it uses less digits than its factorization.

53320620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415 (or 413 counting only the distinct ones).

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

The square root of 53320620 is about 7302.0969590933. The cubic root of 53320620 is about 376.3844999138.

Adding to 53320620 its reverse (2602335), we get a palindrome (55922955).

The spelling of 53320620 in words is "fifty-three million, three hundred twenty thousand, six hundred twenty".