53750728556 has 36 divisors (see below), whose sum is σ = 109516651776. Its totient is φ = 23015916000.

The previous prime is 53750728553. The next prime is 53750728567. The reversal of 53750728556 is 65582705735.

It is a junction number, because it is equal to n+sod(n) for n = 53750728498 and 53750728507.

It is not an unprimeable number, because it can be changed into a prime (53750728553) 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 11 ways as a sum of consecutive naturals, for example, 106466 + ... + 344726.

It is an arithmetic number, because the mean of its divisors is an integer number (3042129216).

Almost surely, 2^53750728556 is an apocalyptic number.

It is an amenable number.

53750728556 is an abundant number, since it is smaller than the sum of its proper divisors (55765923220).

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

53750728556 is a wasteful number, since it uses less digits than its factorization.

53750728556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239430 (or 239421 counting only the distinct ones).

The product of its (nonzero) digits is 8820000, while the sum is 53.

The spelling of 53750728556 in words is "fifty-three billion, seven hundred fifty million, seven hundred twenty-eight thousand, five hundred fifty-six".