53450280 has 256 divisors, whose sum is σ = 198374400. Its totient is φ = 12877056.

The previous prime is 53450273. The next prime is 53450281. The reversal of 53450280 is 8205435.

53450280 is a `hidden beast` number, since 534 + 50 + 2 + 80 = 666.

53450280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53450281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1137217 + ... + 1137263.

It is an arithmetic number, because the mean of its divisors is an integer number (774900).

Almost surely, 2^53450280 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 53450280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99187200).

53450280 is an abundant number, since it is smaller than the sum of its proper divisors (144924120).

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

53450280 is a wasteful number, since it uses less digits than its factorization.

53450280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 53450280 is about 7310.9698399050. The cubic root of 53450280 is about 376.6893382687.

The spelling of 53450280 in words is "fifty-three million, four hundred fifty thousand, two hundred eighty".