55438206 has 8 divisors (see below), whose sum is σ = 110876424. Its totient is φ = 18479400.

The previous prime is 55438183. The next prime is 55438217. The reversal of 55438206 is 60283455.

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

55438206 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4619845 + ... + 4619856.

It is an arithmetic number, because the mean of its divisors is an integer number (13859553).

Almost surely, 2^55438206 is an apocalyptic number.

55438206 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55438206 is a wasteful number, since it uses less digits than its factorization.

55438206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9239706.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 55438206 is about 7445.6837160868. The cubic root of 55438206 is about 381.3025613817.

The spelling of 55438206 in words is "fifty-five million, four hundred thirty-eight thousand, two hundred six".