53500000128 has 32 divisors (see below), whose sum is σ = 142109376360. Its totient is φ = 17833333248.

The previous prime is 53500000123. The next prime is 53500000129. The reversal of 53500000128 is 82100000535.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 53500000098 and 53500000107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53500000123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69661075 + ... + 69661842.

Almost surely, 2^53500000128 is an apocalyptic number.

It is an amenable number.

53500000128 is an abundant number, since it is smaller than the sum of its proper divisors (88609376232).

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

53500000128 is a wasteful number, since it uses less digits than its factorization.

53500000128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139322934 (or 139322922 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The spelling of 53500000128 in words is "fifty-three billion, five hundred million, one hundred twenty-eight", and thus it is an aban number.