53281489632 has 96 divisors (see below), whose sum is σ = 168257376000. Its totient is φ = 14422053888.

The previous prime is 53281489631. The next prime is 53281489633. The reversal of 53281489632 is 23698418235.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (53281489631) and next prime (53281489633).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53281489631) 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, 2073757 + ... + 2099292.

It is an arithmetic number, because the mean of its divisors is an integer number (1752681000).

Almost surely, 2^53281489632 is an apocalyptic number.

It is an amenable number.

53281489632 is an abundant number, since it is smaller than the sum of its proper divisors (114975886368).

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

53281489632 is a wasteful number, since it uses less digits than its factorization.

53281489632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4173088 (or 4173080 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 51.

The spelling of 53281489632 in words is "fifty-three billion, two hundred eighty-one million, four hundred eighty-nine thousand, six hundred thirty-two".