53448577380 has 720 divisors, whose sum is σ = 197256407040. Its totient is φ = 12070840320.

The previous prime is 53448577379. The next prime is 53448577417. The reversal of 53448577380 is 8377584435.

It is a happy number.

53448577380 is a `hidden beast` number, since 5 + 3 + 448 + 57 + 73 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 420854877 + ... + 420855003.

It is an arithmetic number, because the mean of its divisors is an integer number (273967232).

Almost surely, 2^53448577380 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 53448577380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98628203520).

53448577380 is an abundant number, since it is smaller than the sum of its proper divisors (143807829660).

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

53448577380 is a wasteful number, since it uses less digits than its factorization.

53448577380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 54.

The spelling of 53448577380 in words is "fifty-three billion, four hundred forty-eight million, five hundred seventy-seven thousand, three hundred eighty".