55609152 has 56 divisors (see below), whose sum is σ = 149656800. Its totient is φ = 18218496.

The previous prime is 55609139. The next prime is 55609171. The reversal of 55609152 is 25190655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8874 + ... + 13782.

Almost surely, 2^55609152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55609152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74828400).

55609152 is an abundant number, since it is smaller than the sum of its proper divisors (94047648).

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

55609152 is a wasteful number, since it uses less digits than its factorization.

55609152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4983 (or 4973 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 33.

The square root of 55609152 is about 7457.1544170682. The cubic root of 55609152 is about 381.6940799728.

The spelling of 55609152 in words is "fifty-five million, six hundred nine thousand, one hundred fifty-two".