55603026 has 48 divisors (see below), whose sum is σ = 125169408. Its totient is φ = 17820000.

The previous prime is 55603007. The next prime is 55603027. The reversal of 55603026 is 62030655.

55603026 is a `hidden beast` number, since 55 + 603 + 0 + 2 + 6 = 666.

55603026 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (55603027) by changing a digit.

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, 139860 + ... + 140256.

It is an arithmetic number, because the mean of its divisors is an integer number (2607696).

Almost surely, 2^55603026 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55603026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62584704).

55603026 is an abundant number, since it is smaller than the sum of its proper divisors (69566382).

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

55603026 is a wasteful number, since it uses less digits than its factorization.

55603026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687 (or 684 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 55603026 is about 7456.7436592658. The cubic root of 55603026 is about 381.6800634323.

The spelling of 55603026 in words is "fifty-five million, six hundred three thousand, twenty-six".