55670849 has 4 divisors (see below), whose sum is σ = 59953236. Its totient is φ = 51388464.

The previous prime is 55670837. The next prime is 55670851. The reversal of 55670849 is 94807655.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17909824 + 37761025 = 4232^2 + 6145^2 .

It is a cyclic number.

It is not a de Polignac number, because 55670849 - 2¹⁶ = 55605313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55670819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2141174 + ... + 2141199.

It is an arithmetic number, because the mean of its divisors is an integer number (14988309).

Almost surely, 2^55670849 is an apocalyptic number.

It is an amenable number.

55670849 is a deficient number, since it is larger than the sum of its proper divisors (4282387).

55670849 is a wasteful number, since it uses less digits than its factorization.

55670849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4282386.

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 55670849 is about 7461.2900359120. The cubic root of 55670849 is about 381.8351878961.

The spelling of 55670849 in words is "fifty-five million, six hundred seventy thousand, eight hundred forty-nine".