55000054 has 4 divisors (see below), whose sum is σ = 82500084. Its totient is φ = 27500026.

The previous prime is 55000031. The next prime is 55000069. The reversal of 55000054 is 45000055.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45000055 = 5 ⋅9000011.

It is a junction number, because it is equal to n+sod(n) for n = 54999995 and 55000040.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13750012 + ... + 13750015.

It is an arithmetic number, because the mean of its divisors is an integer number (20625021).

Almost surely, 2^55000054 is an apocalyptic number.

55000054 is a deficient number, since it is larger than the sum of its proper divisors (27500030).

55000054 is a wasteful number, since it uses less digits than its factorization.

55000054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27500029.

The product of its (nonzero) digits is 500, while the sum is 19.

The square root of 55000054 is about 7416.2021277740. The cubic root of 55000054 is about 380.2953705364.

Subtracting from 55000054 its reverse (45000055), we obtain a palindrome (9999999).

The spelling of 55000054 in words is "fifty-five million, fifty-four", and thus it is an aban number.