55867806 has 20 divisors (see below), whose sum is σ = 125185632. Its totient is φ = 18622548.

The previous prime is 55867787. The next prime is 55867811. The reversal of 55867806 is 60876855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 172270 + ... + 172593.

Almost surely, 2^55867806 is an apocalyptic number.

55867806 is an abundant number, since it is smaller than the sum of its proper divisors (69317826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55867806 is a wasteful number, since it uses less digits than its factorization.

55867806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344877 (or 344868 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The square root of 55867806 is about 7474.4769716683. The cubic root of 55867806 is about 382.2849540925.

The spelling of 55867806 in words is "fifty-five million, eight hundred sixty-seven thousand, eight hundred six".