55255050550 has 48 divisors (see below), whose sum is σ = 117475918560. Its totient is φ = 18941448960.

The previous prime is 55255050541. The next prime is 55255050577. The reversal of 55255050550 is 5505055255.

It is a super-2 number, since 2×55255050550² (a number of 22 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 23 ways as a sum of consecutive naturals, for example, 3294586 + ... + 3311314.

It is an arithmetic number, because the mean of its divisors is an integer number (2447414970).

Almost surely, 2^55255050550 is an apocalyptic number.

55255050550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55255050550 is an abundant number, since it is smaller than the sum of its proper divisors (62220868010).

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

55255050550 is a wasteful number, since it uses less digits than its factorization.

55255050550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26185 (or 26180 counting only the distinct ones).

The product of its (nonzero) digits is 156250, while the sum is 37.

The spelling of 55255050550 in words is "fifty-five billion, two hundred fifty-five million, fifty thousand, five hundred fifty".