55423849 has 16 divisors (see below), whose sum is σ = 61245072. Its totient is φ = 49840128.

The previous prime is 55423811. The next prime is 55423853. The reversal of 55423849 is 94832455.

It can be written as a sum of positive squares in 8 ways, for example, as 589824 + 54834025 = 768^2 + 7405^2 .

It is a de Polignac number, because none of the positive numbers 2^k-55423849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55423889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176917 + ... + 177229.

It is an arithmetic number, because the mean of its divisors is an integer number (3827817).

Almost surely, 2^55423849 is an apocalyptic number.

It is an amenable number.

55423849 is a deficient number, since it is larger than the sum of its proper divisors (5821223).

55423849 is a wasteful number, since it uses less digits than its factorization.

55423849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636.

The product of its digits is 172800, while the sum is 40.

The square root of 55423849 is about 7444.7195380350. The cubic root of 55423849 is about 381.2696428471.

The spelling of 55423849 in words is "fifty-five million, four hundred twenty-three thousand, eight hundred forty-nine".