55519808 has 28 divisors (see below), whose sum is σ = 110421420. Its totient is φ = 27697152.

The previous prime is 55519787. The next prime is 55519811. The reversal of 55519808 is 80891555.

It can be written as a sum of positive squares in 2 ways, for example, as 32171584 + 23348224 = 5672^2 + 4832^2 .

It is a super-3 number, since 3×55519808³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

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, 42428 + ... + 43716.

Almost surely, 2^55519808 is an apocalyptic number.

It is an amenable number.

55519808 is a deficient number, since it is larger than the sum of its proper divisors (54901612).

55519808 is a wasteful number, since it uses less digits than its factorization.

55519808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1974 (or 1964 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 41.

The square root of 55519808 is about 7451.1615201927. The cubic root of 55519808 is about 381.4895551524.

The spelling of 55519808 in words is "fifty-five million, five hundred nineteen thousand, eight hundred eight".