55252454545540 has 96 divisors (see below), whose sum is σ = 134443036465920. Its totient is φ = 18681328982016.

The previous prime is 55252454545517. The next prime is 55252454545583. The reversal of 55252454545540 is 4554545425255.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66723679 + ... + 67546681.

It is an arithmetic number, because the mean of its divisors is an integer number (1400448296520).

Almost surely, 2^{55252454545540} 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 55252454545540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67221518232960).

55252454545540 is an abundant number, since it is smaller than the sum of its proper divisors (79190581920380).

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

55252454545540 is a wasteful number, since it uses less digits than its factorization.

55252454545540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829661 (or 829659 counting only the distinct ones).

The product of its (nonzero) digits is 80000000, while the sum is 55.

The spelling of 55252454545540 in words is "fifty-five trillion, two hundred fifty-two billion, four hundred fifty-four million, five hundred forty-five thousand, five hundred forty".