55704828 has 12 divisors (see below), whose sum is σ = 129977960. Its totient is φ = 18568272.

The previous prime is 55704787. The next prime is 55704829. The reversal of 55704828 is 82840755.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55704829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2321023 + ... + 2321046.

Almost surely, 2^55704828 is an apocalyptic number.

It is an amenable number.

55704828 is an abundant number, since it is smaller than the sum of its proper divisors (74273132).

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

55704828 is a wasteful number, since it uses less digits than its factorization.

55704828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4642076 (or 4642074 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 55704828 is about 7463.5667076807. The cubic root of 55704828 is about 381.9128571450.

The spelling of 55704828 in words is "fifty-five million, seven hundred four thousand, eight hundred twenty-eight".