53146533888 has 360 divisors, whose sum is σ = 182056597632. Its totient is φ = 15176761344.

The previous prime is 53146533887. The next prime is 53146533907. The reversal of 53146533888 is 88833564135.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53146533887) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27868231 + ... + 27870137.

Almost surely, 2^53146533888 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 53146533888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91028298816).

53146533888 is an abundant number, since it is smaller than the sum of its proper divisors (128910063744).

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

53146533888 is an frugal number, since it uses more digits than its factorization.

53146533888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1957 (or 1919 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 54.

The spelling of 53146533888 in words is "fifty-three billion, one hundred forty-six million, five hundred thirty-three thousand, eight hundred eighty-eight".