53747280 has 160 divisors (see below), whose sum is σ = 187488000. Its totient is φ = 14151168.

The previous prime is 53747263. The next prime is 53747293. The reversal of 53747280 is 8274735.

53747280 is a `hidden beast` number, since 5 + 374 + 7 + 280 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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, 321757 + ... + 321923.

It is an arithmetic number, because the mean of its divisors is an integer number (1171800).

Almost surely, 2^53747280 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 53747280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93744000).

53747280 is an abundant number, since it is smaller than the sum of its proper divisors (133740720).

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

53747280 is a wasteful number, since it uses less digits than its factorization.

53747280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 53747280 is about 7331.2536445004. The cubic root of 53747280 is about 377.3857496749.

The spelling of 53747280 in words is "fifty-three million, seven hundred forty-seven thousand, two hundred eighty".