55049911 has 8 divisors (see below), whose sum is σ = 62967200. Its totient is φ = 47145888.

The previous prime is 55049909. The next prime is 55049923. The reversal of 55049911 is 11994055.

It is a happy number.

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 55049911 - 2¹ = 55049909 is a prime.

It is a super-2 number, since 2×55049911² = 6060985402215842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55049941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8305 + ... + 13381.

It is an arithmetic number, because the mean of its divisors is an integer number (7870900).

Almost surely, 2^55049911 is an apocalyptic number.

55049911 is a deficient number, since it is larger than the sum of its proper divisors (7917289).

55049911 is a wasteful number, since it uses less digits than its factorization.

55049911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6633.

The product of its (nonzero) digits is 8100, while the sum is 34.

The square root of 55049911 is about 7419.5627229642. The cubic root of 55049911 is about 380.4102471511.

The spelling of 55049911 in words is "fifty-five million, forty-nine thousand, nine hundred eleven".