53123280 has 160 divisors (see below), whose sum is σ = 190654464. Its totient is φ = 11985408.

The previous prime is 53123269. The next prime is 53123281. The reversal of 53123280 is 8232135.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 53123280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53123281) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 172887 + ... + 173193.

Almost surely, 2^53123280 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 53123280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95327232).

53123280 is an abundant number, since it is smaller than the sum of its proper divisors (137531184).

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

53123280 is a wasteful number, since it uses less digits than its factorization.

53123280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 53123280 is about 7288.5718765750. The cubic root of 53123280 is about 375.9195919805.

The spelling of 53123280 in words is "fifty-three million, one hundred twenty-three thousand, two hundred eighty".