55530555 has 8 divisors (see below), whose sum is σ = 88848912. Its totient is φ = 29616288.

The previous prime is 55530529. The next prime is 55530577. The reversal of 55530555 is 55503555.

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

It is not a de Polignac number, because 55530555 - 2⁶ = 55530491 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1851004 + ... + 1851033.

It is an arithmetic number, because the mean of its divisors is an integer number (11106114).

Almost surely, 2^55530555 is an apocalyptic number.

55530555 is a deficient number, since it is larger than the sum of its proper divisors (33318357).

55530555 is a wasteful number, since it uses less digits than its factorization.

55530555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3702045.

The product of its (nonzero) digits is 46875, while the sum is 33.

The square root of 55530555 is about 7451.8826480293. The cubic root of 55530555 is about 381.5141686125.

Subtracting from 55530555 its reverse (55503555), we obtain a cube (27000 = 30³).

The spelling of 55530555 in words is "fifty-five million, five hundred thirty thousand, five hundred fifty-five".