53543672 has 128 divisors (see below), whose sum is σ = 134400000. Its totient is φ = 19813248.

The previous prime is 53543671. The next prime is 53543681. The reversal of 53543672 is 27634535.

It is a super-2 number, since 2×53543672² = 5733849622487168, which contains 22 as substring.

Its product of digits (75600) is a multiple of the sum of its prime divisors (120).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53543671) 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 31 ways as a sum of consecutive naturals, for example, 677729 + ... + 677807.

It is an arithmetic number, because the mean of its divisors is an integer number (1050000).

Almost surely, 2^53543672 is an apocalyptic number.

53543672 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53543672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67200000).

53543672 is an abundant number, since it is smaller than the sum of its proper divisors (80856328).

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

53543672 is a wasteful number, since it uses less digits than its factorization.

53543672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 120 counting only the distinct ones).

The product of its digits is 75600, while the sum is 35.

The square root of 53543672 is about 7317.3541666370. The cubic root of 53543672 is about 376.9086031072.

The spelling of 53543672 in words is "fifty-three million, five hundred forty-three thousand, six hundred seventy-two".