53681152 has 44 divisors (see below), whose sum is σ = 122656240. Its totient is φ = 23003136.

The previous prime is 53681101. The next prime is 53681153. The reversal of 53681152 is 25118635.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53681153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3424 + ... + 10912.

Almost surely, 2^53681152 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 53681152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61328120).

53681152 is an abundant number, since it is smaller than the sum of its proper divisors (68975088).

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

53681152 is an equidigital number, since it uses as much as digits as its factorization.

53681152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7516 (or 7498 counting only the distinct ones).

The product of its digits is 7200, while the sum is 31.

The square root of 53681152 is about 7326.7422501409. The cubic root of 53681152 is about 377.2309138913.

Adding to 53681152 its reverse (25118635), we get a palindrome (78799787).

The spelling of 53681152 in words is "fifty-three million, six hundred eighty-one thousand, one hundred fifty-two".