55554649 has 8 divisors (see below), whose sum is σ = 57197448. Its totient is φ = 53919360.

The previous prime is 55554647. The next prime is 55554661. The reversal of 55554649 is 94645555.

It can be written as a sum of positive squares in 4 ways, for example, as 24552025 + 31002624 = 4955^2 + 5568^2 .

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

It is not a de Polignac number, because 55554649 - 2¹ = 55554647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55554641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15429 + ... + 18685.

It is an arithmetic number, because the mean of its divisors is an integer number (7149681).

Almost surely, 2^55554649 is an apocalyptic number.

It is an amenable number.

55554649 is a deficient number, since it is larger than the sum of its proper divisors (1642799).

55554649 is a wasteful number, since it uses less digits than its factorization.

55554649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3755.

The product of its digits is 540000, while the sum is 43.

The square root of 55554649 is about 7453.4991111558. The cubic root of 55554649 is about 381.5693386790.

The spelling of 55554649 in words is "fifty-five million, five hundred fifty-four thousand, six hundred forty-nine".