55609008 has 160 divisors (see below), whose sum is σ = 183321600. Its totient is φ = 14128128.

The previous prime is 55608967. The next prime is 55609027. The reversal of 55609008 is 80090655.

It is a self number, because there is not a number n which added to its sum of digits gives 55609008.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126453 + ... + 126891.

It is an arithmetic number, because the mean of its divisors is an integer number (1145760).

Almost surely, 2^55609008 is an apocalyptic number.

55609008 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55609008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91660800).

55609008 is an abundant number, since it is smaller than the sum of its proper divisors (127712592).

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

55609008 is a wasteful number, since it uses less digits than its factorization.

55609008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499 (or 493 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 55609008 is about 7457.1447619045. The cubic root of 55609008 is about 381.6937505067.

The spelling of 55609008 in words is "fifty-five million, six hundred nine thousand, eight".