55005050550 has 24 divisors (see below), whose sum is σ = 136412525736. Its totient is φ = 14668013440.

The previous prime is 55005050543. The next prime is 55005050557. The reversal of 55005050550 is 5505050055.

It is an interprime number because it is at equal distance from previous prime (55005050543) and next prime (55005050557).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55005050557) 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, 183350019 + ... + 183350318.

It is an arithmetic number, because the mean of its divisors is an integer number (5683855239).

Almost surely, 2^55005050550 is an apocalyptic number.

55005050550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55005050550 is an abundant number, since it is smaller than the sum of its proper divisors (81407475186).

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

55005050550 is a wasteful number, since it uses less digits than its factorization.

55005050550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366700352 (or 366700347 counting only the distinct ones).

The product of its (nonzero) digits is 15625, while the sum is 30.

The spelling of 55005050550 in words is "fifty-five billion, five million, fifty thousand, five hundred fifty".