55717849 has 4 divisors (see below), whose sum is σ = 60783120. Its totient is φ = 50652580.

The previous prime is 55717847. The next prime is 55717853. The reversal of 55717849 is 94871755.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 55717849 - 2¹ = 55717847 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55717799 and 55717808.

It is not an unprimeable number, because it can be changed into a prime (55717847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2532619 + ... + 2532640.

It is an arithmetic number, because the mean of its divisors is an integer number (15195780).

Almost surely, 2^55717849 is an apocalyptic number.

It is an amenable number.

55717849 is a deficient number, since it is larger than the sum of its proper divisors (5065271).

55717849 is a wasteful number, since it uses less digits than its factorization.

55717849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5065270.

The product of its digits is 352800, while the sum is 46.

The square root of 55717849 is about 7464.4389608329. The cubic root of 55717849 is about 381.9426121954.

The spelling of 55717849 in words is "fifty-five million, seven hundred seventeen thousand, eight hundred forty-nine".