55454247 has 16 divisors (see below), whose sum is σ = 82291680. Its totient is φ = 36907776.

The previous prime is 55454239. The next prime is 55454251. The reversal of 55454247 is 74245455.

It is a happy number.

55454247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55454247 - 2³ = 55454239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55454227) 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 15 ways as a sum of consecutive naturals, for example, 19543 + ... + 22199.

It is an arithmetic number, because the mean of its divisors is an integer number (5143230).

Almost surely, 2^55454247 is an apocalyptic number.

55454247 is a deficient number, since it is larger than the sum of its proper divisors (26837433).

55454247 is a wasteful number, since it uses less digits than its factorization.

55454247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3439 (or 3433 counting only the distinct ones).

The product of its digits is 112000, while the sum is 36.

The square root of 55454247 is about 7446.7608394523. The cubic root of 55454247 is about 381.3393343643.

The spelling of 55454247 in words is "fifty-five million, four hundred fifty-four thousand, two hundred forty-seven".