55801026 has 12 divisors (see below), whose sum is σ = 120902262. Its totient is φ = 18600336.

The previous prime is 55801019. The next prime is 55801027. The reversal of 55801026 is 62010855.

55801026 is a `hidden beast` number, since 558 + 0 + 102 + 6 = 666.

55801026 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 48233025 + 7568001 = 6945^2 + 2751^2 .

It is a super-2 number, since 2×55801026² = 6227509005305352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55801027) 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 5 ways as a sum of consecutive naturals, for example, 1550011 + ... + 1550046.

Almost surely, 2^55801026 is an apocalyptic number.

55801026 is an abundant number, since it is smaller than the sum of its proper divisors (65101236).

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

55801026 is a wasteful number, since it uses less digits than its factorization.

55801026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3100065 (or 3100062 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 55801026 is about 7470.0084337302. The cubic root of 55801026 is about 382.1325755308.

The spelling of 55801026 in words is "fifty-five million, eight hundred one thousand, twenty-six".