55000000050550 has 24 divisors (see below), whose sum is σ = 102300558423336. Its totient is φ = 21999879949440.

The previous prime is 55000000050511. The next prime is 55000000050559. The reversal of 55000000050550 is 5505000000055.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55000000050559) 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, 6552174 + ... + 12366526.

It is an arithmetic number, because the mean of its divisors is an integer number (4262523267639).

Almost surely, 2^{55000000050550} is an apocalyptic number.

55000000050550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55000000050550 is a deficient number, since it is larger than the sum of its proper divisors (47300558372786).

55000000050550 is a wasteful number, since it uses less digits than its factorization.

55000000050550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6003552 (or 6003547 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 25.

The spelling of 55000000050550 in words is "fifty-five trillion, fifty thousand, five hundred fifty".