55244905 has 8 divisors (see below), whose sum is σ = 66592512. Its totient is φ = 43996848.

The previous prime is 55244863. The next prime is 55244911. The reversal of 55244905 is 50944255.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55244905 - 2¹¹ = 55242857 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23659 + ... + 25888.

It is an arithmetic number, because the mean of its divisors is an integer number (8324064).

Almost surely, 2^55244905 is an apocalyptic number.

It is an amenable number.

55244905 is a deficient number, since it is larger than the sum of its proper divisors (11347607).

55244905 is a wasteful number, since it uses less digits than its factorization.

55244905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49775.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 55244905 is about 7432.6916389690. The cubic root of 55244905 is about 380.8588721893.

The spelling of 55244905 in words is "fifty-five million, two hundred forty-four thousand, nine hundred five".