55530802577550 has 24 divisors (see below), whose sum is σ = 137716390392696. Its totient is φ = 14808214020640.

The previous prime is 55530802577519. The next prime is 55530802577557. The reversal of 55530802577550 is 5577520803555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55530802577557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185102675109 + ... + 185102675408.

It is an arithmetic number, because the mean of its divisors is an integer number (5738182933029).

Almost surely, 2^{55530802577550} is an apocalyptic number.

55530802577550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55530802577550 is an abundant number, since it is smaller than the sum of its proper divisors (82185587815146).

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

55530802577550 is a wasteful number, since it uses less digits than its factorization.

55530802577550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370205350532 (or 370205350527 counting only the distinct ones).

The product of its (nonzero) digits is 36750000, while the sum is 57.

The spelling of 55530802577550 in words is "fifty-five trillion, five hundred thirty billion, eight hundred two million, five hundred seventy-seven thousand, five hundred fifty".