53273280 has 112 divisors (see below), whose sum is σ = 170590464. Its totient is φ = 14085120.

The previous prime is 53273249. The next prime is 53273281. The reversal of 53273280 is 8237235.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53273281) 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 15 ways as a sum of consecutive naturals, for example, 202429 + ... + 202691.

Almost surely, 2^53273280 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 53273280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85295232).

53273280 is an abundant number, since it is smaller than the sum of its proper divisors (117317184).

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

53273280 is a wasteful number, since it uses less digits than its factorization.

53273280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 53273280 is about 7298.8547046780. The cubic root of 53273280 is about 376.2730776160.

The spelling of 53273280 in words is "fifty-three million, two hundred seventy-three thousand, two hundred eighty".