53308880 has 40 divisors (see below), whose sum is σ = 125061192. Its totient is φ = 21131264.

The previous prime is 53308847. The next prime is 53308883. The reversal of 53308880 is 8880335.

It can be written as a sum of positive squares in 4 ways, for example, as 3125824 + 50183056 = 1768^2 + 7084^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 53308880.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53308883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6092 + ... + 11988.

Almost surely, 2^53308880 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 53308880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62530596).

53308880 is an abundant number, since it is smaller than the sum of its proper divisors (71752312).

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

53308880 is a wasteful number, since it uses less digits than its factorization.

53308880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6023 (or 6017 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 53308880 is about 7301.2930361683. The cubic root of 53308880 is about 376.3568740886.

The spelling of 53308880 in words is "fifty-three million, three hundred eight thousand, eight hundred eighty".