55000055019 has 32 divisors (see below), whose sum is σ = 90397156864. Its totient is φ = 28965807360.

The previous prime is 55000054987. The next prime is 55000055023. The reversal of 55000055019 is 91055000055.

It is not a de Polignac number, because 55000055019 - 2⁵ = 55000054987 is a prime.

It is a super-2 number, since 2×55000055019² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55000056019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18879 + ... + 332199.

It is an arithmetic number, because the mean of its divisors is an integer number (2824911152).

Almost surely, 2^55000055019 is an apocalyptic number.

55000055019 is a deficient number, since it is larger than the sum of its proper divisors (35397101845).

55000055019 is a wasteful number, since it uses less digits than its factorization.

55000055019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313987.

The product of its (nonzero) digits is 5625, while the sum is 30.

The spelling of 55000055019 in words is "fifty-five billion, fifty-five thousand, nineteen".