55505004550 has 24 divisors (see below), whose sum is σ = 103249536696. Its totient is φ = 22199802240.

The previous prime is 55505004547. The next prime is 55505004553. The reversal of 55505004550 is 5540050555.

It is an interprime number because it is at equal distance from previous prime (55505004547) and next prime (55505004553).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55505004553) 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, 512782 + ... + 611518.

It is an arithmetic number, because the mean of its divisors is an integer number (4302064029).

Almost surely, 2^55505004550 is an apocalyptic number.

55505004550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55505004550 is a deficient number, since it is larger than the sum of its proper divisors (47744532146).

55505004550 is a wasteful number, since it uses less digits than its factorization.

55505004550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109992 (or 109987 counting only the distinct ones).

The product of its (nonzero) digits is 62500, while the sum is 34.

The spelling of 55505004550 in words is "fifty-five billion, five hundred five million, four thousand, five hundred fifty".