53647872 has 80 divisors (see below), whose sum is σ = 145838880. Its totient is φ = 17518592.

The previous prime is 53647871. The next prime is 53647877. The reversal of 53647872 is 27874635.

It is not an unprimeable number, because it can be changed into a prime (53647871) 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, 81079 + ... + 81737.

It is an arithmetic number, because the mean of its divisors is an integer number (1822986).

Almost surely, 2^53647872 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 53647872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72919440).

53647872 is an abundant number, since it is smaller than the sum of its proper divisors (92191008).

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

53647872 is an equidigital number, since it uses as much as digits as its factorization.

53647872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733 (or 717 counting only the distinct ones).

The product of its digits is 282240, while the sum is 42.

The square root of 53647872 is about 7324.4707658642. The cubic root of 53647872 is about 377.1529421414.

The spelling of 53647872 in words is "fifty-three million, six hundred forty-seven thousand, eight hundred seventy-two".