53402243232 has 96 divisors (see below), whose sum is σ = 151097946048. Its totient is φ = 16416884736.

The previous prime is 53402243231. The next prime is 53402243261. The reversal of 53402243232 is 23234220435.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 53402243232.

It is not an unprimeable number, because it can be changed into a prime (53402243231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1433028 + ... + 1469820.

It is an arithmetic number, because the mean of its divisors is an integer number (1573936938).

Almost surely, 2^53402243232 is an apocalyptic number.

53402243232 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 53402243232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75548973024).

53402243232 is an abundant number, since it is smaller than the sum of its proper divisors (97695702816).

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

53402243232 is a wasteful number, since it uses less digits than its factorization.

53402243232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37982 (or 37974 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 30.

Adding to 53402243232 its reverse (23234220435), we get a palindrome (76636463667).

The spelling of 53402243232 in words is "fifty-three billion, four hundred two million, two hundred forty-three thousand, two hundred thirty-two".