55544486137480 has 32 divisors (see below), whose sum is σ = 128352799050840. Its totient is φ = 21617313523200.

The previous prime is 55544486137457. The next prime is 55544486137513. The reversal of 55544486137480 is 8473168444555.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 45073579706596 + 10470906430884 = 6713686^2 + 3235878^2 .

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, 18765027621 + ... + 18765030580.

Almost surely, 2^{55544486137480} is an apocalyptic number.

It is an amenable number.

55544486137480 is an abundant number, since it is smaller than the sum of its proper divisors (72808312913360).

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

55544486137480 is a wasteful number, since it uses less digits than its factorization.

55544486137480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37530058249 (or 37530058245 counting only the distinct ones).

The product of its (nonzero) digits is 258048000, while the sum is 64.

The spelling of 55544486137480 in words is "fifty-five trillion, five hundred forty-four billion, four hundred eighty-six million, one hundred thirty-seven thousand, four hundred eighty".