53197872 has 160 divisors (see below), whose sum is σ = 178321920. Its totient is φ = 13271040.

The previous prime is 53197847. The next prime is 53197877. The reversal of 53197872 is 27879135.

53197872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (53197877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82672 + ... + 83312.

It is an arithmetic number, because the mean of its divisors is an integer number (1114512).

Almost surely, 2^53197872 is an apocalyptic number.

53197872 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 53197872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89160960).

53197872 is an abundant number, since it is smaller than the sum of its proper divisors (125124048).

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

53197872 is a wasteful number, since it uses less digits than its factorization.

53197872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691 (or 685 counting only the distinct ones).

The product of its digits is 105840, while the sum is 42.

The square root of 53197872 is about 7293.6871334052. The cubic root of 53197872 is about 376.0954563737.

The spelling of 53197872 in words is "fifty-three million, one hundred ninety-seven thousand, eight hundred seventy-two".