55327510748640 has 384 divisors, whose sum is σ = 193231166768640. Its totient is φ = 13220736786432.

The previous prime is 55327510748633. The next prime is 55327510748659. The reversal of 55327510748640 is 4684701572355.

It is a happy number.

It is a super-2 number, since 2×55327510748640² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 43103646 + ... + 44368674.

It is an arithmetic number, because the mean of its divisors is an integer number (503206163460).

Almost surely, 2^{55327510748640} 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 55327510748640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96615583384320).

55327510748640 is an abundant number, since it is smaller than the sum of its proper divisors (137903656020000).

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

55327510748640 is a wasteful number, since it uses less digits than its factorization.

55327510748640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265266 (or 1265258 counting only the distinct ones).

The product of its (nonzero) digits is 28224000, while the sum is 57.

The spelling of 55327510748640 in words is "fifty-five trillion, three hundred twenty-seven billion, five hundred ten million, seven hundred forty-eight thousand, six hundred forty".