55009650 has 48 divisors (see below), whose sum is σ = 137812608. Its totient is φ = 14520000.

The previous prime is 55009631. The next prime is 55009679. The reversal of 55009650 is 5690055.

It is a happy number.

55009650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×55009650³ (a number of 24 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13335 + ... + 16965.

It is an arithmetic number, because the mean of its divisors is an integer number (2871096).

Almost surely, 2^55009650 is an apocalyptic number.

55009650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 55009650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68906304).

55009650 is an abundant number, since it is smaller than the sum of its proper divisors (82802958).

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

55009650 is a wasteful number, since it uses less digits than its factorization.

55009650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3747 (or 3742 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 30.

The square root of 55009650 is about 7416.8490614276. The cubic root of 55009650 is about 380.3174862853.

The spelling of 55009650 in words is "fifty-five million, nine thousand, six hundred fifty".