55830247 has 6 divisors (see below), whose sum is σ = 61367264. Its totient is φ = 50754660.

The previous prime is 55830241. The next prime is 55830263. The reversal of 55830247 is 74203855.

It is a happy number.

It is not a de Polignac number, because 55830247 - 2⁷ = 55830119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55830241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 230583 + ... + 230824.

Almost surely, 2^55830247 is an apocalyptic number.

55830247 is a deficient number, since it is larger than the sum of its proper divisors (5537017).

55830247 is a wasteful number, since it uses less digits than its factorization.

55830247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461429 (or 461418 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 55830247 is about 7471.9640657594. The cubic root of 55830247 is about 382.1992669415.

The spelling of 55830247 in words is "fifty-five million, eight hundred thirty thousand, two hundred forty-seven".