55558080550 has 48 divisors (see below), whose sum is σ = 118171624032. Its totient is φ = 19037030400.

The previous prime is 55558080547. The next prime is 55558080553. The reversal of 55558080550 is 5508085555.

It is an interprime number because it is at equal distance from previous prime (55558080547) and next prime (55558080553).

It is a self number, because there is not a number n which added to its sum of digits gives 55558080550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55558080553) 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, 545670 + ... + 639430.

It is an arithmetic number, because the mean of its divisors is an integer number (2461908834).

Almost surely, 2^55558080550 is an apocalyptic number.

55558080550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55558080550 is an abundant number, since it is smaller than the sum of its proper divisors (62613543482).

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

55558080550 is a wasteful number, since it uses less digits than its factorization.

55558080550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95473 (or 95468 counting only the distinct ones).

The product of its (nonzero) digits is 1000000, while the sum is 46.

The spelling of 55558080550 in words is "fifty-five billion, five hundred fifty-eight million, eighty thousand, five hundred fifty".