55909368 has 96 divisors (see below), whose sum is σ = 160767360. Its totient is φ = 17521920.

The previous prime is 55909351. The next prime is 55909369. The reversal of 55909368 is 86390955.

55909368 is a `hidden beast` number, since 559 + 0 + 93 + 6 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55909369) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82246 + ... + 82922.

It is an arithmetic number, because the mean of its divisors is an integer number (1674660).

Almost surely, 2^55909368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55909368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80383680).

55909368 is an abundant number, since it is smaller than the sum of its proper divisors (104857992).

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

55909368 is a wasteful number, since it uses less digits than its factorization.

55909368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757 (or 750 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 55909368 is about 7477.2567162028. The cubic root of 55909368 is about 382.3797289430.

The spelling of 55909368 in words is "fifty-five million, nine hundred nine thousand, three hundred sixty-eight".