55315447 has 8 divisors (see below), whose sum is σ = 60420240. Its totient is φ = 50223360.

The previous prime is 55315427. The next prime is 55315451. The reversal of 55315447 is 74451355.

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

It is not a de Polignac number, because 55315447 - 2¹¹ = 55313399 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 (55315417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7513 + ... + 12925.

It is an arithmetic number, because the mean of its divisors is an integer number (7552530).

Almost surely, 2^55315447 is an apocalyptic number.

55315447 is a deficient number, since it is larger than the sum of its proper divisors (5104793).

55315447 is a wasteful number, since it uses less digits than its factorization.

55315447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6353.

The product of its digits is 42000, while the sum is 34.

The square root of 55315447 is about 7437.4355123255. The cubic root of 55315447 is about 381.0209089684.

The spelling of 55315447 in words is "fifty-five million, three hundred fifteen thousand, four hundred forty-seven".