55806949 has 8 divisors (see below), whose sum is σ = 60958080. Its totient is φ = 50668800.

The previous prime is 55806893. The next prime is 55806977. The reversal of 55806949 is 94960855.

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 55806949 - 2¹¹ = 55804901 is a prime.

It is a super-2 number, since 2×55806949² = 6228831113377202, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55806899 and 55806908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55804949) 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, 7237 + ... + 12805.

It is an arithmetic number, because the mean of its divisors is an integer number (7619760).

Almost surely, 2^55806949 is an apocalyptic number.

It is an amenable number.

55806949 is a deficient number, since it is larger than the sum of its proper divisors (5151131).

55806949 is a wasteful number, since it uses less digits than its factorization.

55806949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6491.

The product of its (nonzero) digits is 388800, while the sum is 46.

The square root of 55806949 is about 7470.4048752394. The cubic root of 55806949 is about 382.1460955401.

The spelling of 55806949 in words is "fifty-five million, eight hundred six thousand, nine hundred forty-nine".