55449768 has 32 divisors (see below), whose sum is σ = 151227360. Its totient is φ = 16802880.

The previous prime is 55449763. The next prime is 55449773. The reversal of 55449768 is 86794455.

It is an interprime number because it is at equal distance from previous prime (55449763) and next prime (55449773).

It is not an unprimeable number, because it can be changed into a prime (55449761) 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 7 ways as a sum of consecutive naturals, for example, 104755 + ... + 105282.

It is an arithmetic number, because the mean of its divisors is an integer number (4725855).

Almost surely, 2^55449768 is an apocalyptic number.

It is an amenable number.

55449768 is an abundant number, since it is smaller than the sum of its proper divisors (95777592).

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

55449768 is a wasteful number, since it uses less digits than its factorization.

55449768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210057 (or 210053 counting only the distinct ones).

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

The square root of 55449768 is about 7446.4600985972. The cubic root of 55449768 is about 381.3290672525.

The spelling of 55449768 in words is "fifty-five million, four hundred forty-nine thousand, seven hundred sixty-eight".