55555546 has 8 divisors (see below), whose sum is σ = 84071124. Its totient is φ = 27531840.

The previous prime is 55555543. The next prime is 55555547. The reversal of 55555546 is 64555555.

It can be written as a sum of positive squares in 2 ways, for example, as 40462321 + 15093225 = 6361^2 + 3885^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 55555499 and 55555508.

It is not an unprimeable number, because it can be changed into a prime (55555543) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 122685 + ... + 123136.

Almost surely, 2^55555546 is an apocalyptic number.

55555546 is a deficient number, since it is larger than the sum of its proper divisors (28515578).

55555546 is a wasteful number, since it uses less digits than its factorization.

55555546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245936.

The product of its digits is 375000, while the sum is 40.

The square root of 55555546 is about 7453.5592839931. The cubic root of 55555546 is about 381.5713923077.

Subtracting 55555546 from its reverse (64555555), we obtain a palindrome (9000009).

The spelling of 55555546 in words is "fifty-five million, five hundred fifty-five thousand, five hundred forty-six".