55558032 has 40 divisors (see below), whose sum is σ = 144809184. Its totient is φ = 18353664.

The previous prime is 55558031. The next prime is 55558039. The reversal of 55558032 is 23085555.

It is a junction number, because it is equal to n+sod(n) for n = 55557984 and 55558002.

It is not an unprimeable number, because it can be changed into a prime (55558031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303 + ... + 10545.

Almost surely, 2^55558032 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 55558032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72404592).

55558032 is an abundant number, since it is smaller than the sum of its proper divisors (89251152).

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

55558032 is a wasteful number, since it uses less digits than its factorization.

55558032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10367 (or 10361 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 33.

The square root of 55558032 is about 7453.7260480917. The cubic root of 55558032 is about 381.5770837427.

The spelling of 55558032 in words is "fifty-five million, five hundred fifty-eight thousand, thirty-two".