55244805 has 48 divisors (see below), whose sum is σ = 112186944. Its totient is φ = 22955520.

The previous prime is 55244803. The next prime is 55244863. The reversal of 55244805 is 50844255.

It is not a de Polignac number, because 55244805 - 2¹ = 55244803 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55244801) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4669 + ... + 11501.

It is an arithmetic number, because the mean of its divisors is an integer number (2337228).

Almost surely, 2^55244805 is an apocalyptic number.

55244805 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55244805 is an abundant number, since it is smaller than the sum of its proper divisors (56942139).

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

55244805 is a wasteful number, since it uses less digits than its factorization.

55244805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6866 (or 6859 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 33.

The square root of 55244805 is about 7432.6849119279. The cubic root of 55244805 is about 380.8586423889.

The spelling of 55244805 in words is "fifty-five million, two hundred forty-four thousand, eight hundred five".