55449786 has 32 divisors (see below), whose sum is σ = 126967680. Its totient is φ = 15814656.

The previous prime is 55449773. The next prime is 55449799. The reversal of 55449786 is 68794455.

55449786 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55449773) and next prime (55449799).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38650 + ... + 40058.

It is an arithmetic number, because the mean of its divisors is an integer number (3967740).

Almost surely, 2^55449786 is an apocalyptic number.

55449786 is an abundant number, since it is smaller than the sum of its proper divisors (71517894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55449786 is a wasteful number, since it uses less digits than its factorization.

55449786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2358.

The product of its digits is 1209600, while the sum is 48.

The square root of 55449786 is about 7446.4613072251. The cubic root of 55449786 is about 381.3291085146.

The spelling of 55449786 in words is "fifty-five million, four hundred forty-nine thousand, seven hundred eighty-six".