53647120 has 40 divisors (see below), whose sum is σ = 125706240. Its totient is φ = 21290880.

The previous prime is 53647093. The next prime is 53647123. The reversal of 53647120 is 2174635.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (53647123) 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 7 ways as a sum of consecutive naturals, for example, 7921 + ... + 13039.

It is an arithmetic number, because the mean of its divisors is an integer number (3142656).

Almost surely, 2^53647120 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 53647120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62853120).

53647120 is an abundant number, since it is smaller than the sum of its proper divisors (72059120).

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

53647120 is a wasteful number, since it uses less digits than its factorization.

53647120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5263 (or 5257 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 53647120 is about 7324.4194309174. The cubic root of 53647120 is about 377.1511799073.

The spelling of 53647120 in words is "fifty-three million, six hundred forty-seven thousand, one hundred twenty".