53550421455556 has 24 divisors (see below), whose sum is σ = 96246481781016. Its totient is φ = 26051433488640.

The previous prime is 53550421455547. The next prime is 53550421455589. The reversal of 53550421455556 is 65555412405535.

It can be written as a sum of positive squares in 4 ways, for example, as 36855025455556 + 16695396000000 = 6070834^2 + 4086000^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53550421455497 and 53550421455506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35977680 + ... + 37436536.

It is an arithmetic number, because the mean of its divisors is an integer number (4010270074209).

Almost surely, 2^{53550421455556} is an apocalyptic number.

It is an amenable number.

53550421455556 is a deficient number, since it is larger than the sum of its proper divisors (42696060325460).

53550421455556 is a wasteful number, since it uses less digits than its factorization.

53550421455556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706919 (or 1706917 counting only the distinct ones).

The product of its (nonzero) digits is 45000000, while the sum is 55.

The spelling of 53550421455556 in words is "fifty-three trillion, five hundred fifty billion, four hundred twenty-one million, four hundred fifty-five thousand, five hundred fifty-six".