55552555 has 8 divisors (see below), whose sum is σ = 66708000. Its totient is φ = 44412096.

The previous prime is 55552547. The next prime is 55552573. The reversal of 55552555 is 55525555.

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

It is a cyclic number.

It is not a de Polignac number, because 55552555 - 2³ = 55552547 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, 7471 + ... + 12919.

It is an arithmetic number, because the mean of its divisors is an integer number (8338500).

Almost surely, 2^55552555 is an apocalyptic number.

55552555 is a deficient number, since it is larger than the sum of its proper divisors (11155445).

55552555 is a wasteful number, since it uses less digits than its factorization.

55552555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7493.

The product of its digits is 156250, while the sum is 37.

The square root of 55552555 is about 7453.3586388956. The cubic root of 55552555 is about 381.5645445034.

Subtracting from 55552555 its reverse (55525555), we obtain a cube (27000 = 30³).

The spelling of 55552555 in words is "fifty-five million, five hundred fifty-two thousand, five hundred fifty-five".