55554885 has 24 divisors (see below), whose sum is σ = 96478200. Its totient is φ = 29572992.

The previous prime is 55554847. The next prime is 55554887. The reversal of 55554885 is 58845555.

It can be written as a sum of positive squares in 4 ways, for example, as 2934369 + 52620516 = 1713^2 + 7254^2 .

It is not a de Polignac number, because 55554885 - 2⁷ = 55554757 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55554885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55554887) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35091 + ... + 36639.

It is an arithmetic number, because the mean of its divisors is an integer number (4019925).

Almost surely, 2^55554885 is an apocalyptic number.

It is an amenable number.

55554885 is a deficient number, since it is larger than the sum of its proper divisors (40923315).

55554885 is a wasteful number, since it uses less digits than its factorization.

55554885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2357 (or 2354 counting only the distinct ones).

The product of its digits is 800000, while the sum is 45.

The square root of 55554885 is about 7453.5149426294. The cubic root of 55554885 is about 381.5698789893.

It can be divided in two parts, 5555 and 4885, that added together give a triangular number (10440 = T₁₄₄).

The spelling of 55554885 in words is "fifty-five million, five hundred fifty-four thousand, eight hundred eighty-five".