55809064 has 16 divisors (see below), whose sum is σ = 104836320. Its totient is φ = 27852720.

The previous prime is 55809059. The next prime is 55809071. The reversal of 55809064 is 46090855.

It is a super-2 number, since 2×55809064² = 6229303249112192, which contains 22 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, 1692 + ... + 10699.

It is an arithmetic number, because the mean of its divisors is an integer number (6552270).

Almost surely, 2^55809064 is an apocalyptic number.

It is an amenable number.

55809064 is a deficient number, since it is larger than the sum of its proper divisors (49027256).

55809064 is a wasteful number, since it uses less digits than its factorization.

55809064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12960 (or 12956 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 55809064 is about 7470.5464324907. The cubic root of 55809064 is about 382.1509230678.

The spelling of 55809064 in words is "fifty-five million, eight hundred nine thousand, sixty-four".