55600155506550 has 48 divisors (see below), whose sum is σ = 137962241940672. Its totient is φ = 14818766599200.

The previous prime is 55600155506543. The next prime is 55600155506557. The reversal of 55600155506550 is 5560555100655.

It is an interprime number because it is at equal distance from previous prime (55600155506543) and next prime (55600155506557).

It is a self number, because there is not a number n which added to its sum of digits gives 55600155506550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55600155506557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98988216 + ... + 99548315.

It is an arithmetic number, because the mean of its divisors is an integer number (2874213373764).

Almost surely, 2^{55600155506550} is an apocalyptic number.

55600155506550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55600155506550 is an abundant number, since it is smaller than the sum of its proper divisors (82362086434122).

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

55600155506550 is a wasteful number, since it uses less digits than its factorization.

55600155506550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198538413 (or 198538408 counting only the distinct ones).

The product of its (nonzero) digits is 2812500, while the sum is 48.

The spelling of 55600155506550 in words is "fifty-five trillion, six hundred billion, one hundred fifty-five million, five hundred six thousand, five hundred fifty".