55845559540 has 24 divisors (see below), whose sum is σ = 117339247872. Its totient is φ = 22326114720.

The previous prime is 55845559481. The next prime is 55845559573. The reversal of 55845559540 is 4595554855.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 718956 + ... + 792835.

It is an arithmetic number, because the mean of its divisors is an integer number (4889135328).

Almost surely, 2^55845559540 is an apocalyptic number.

It is an amenable number.

55845559540 is an abundant number, since it is smaller than the sum of its proper divisors (61493688332).

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

55845559540 is a wasteful number, since it uses less digits than its factorization.

55845559540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513647 (or 1513645 counting only the distinct ones).

The product of its (nonzero) digits is 18000000, while the sum is 55.

The spelling of 55845559540 in words is "fifty-five billion, eight hundred forty-five million, five hundred fifty-nine thousand, five hundred forty".