55867392 has 144 divisors (see below), whose sum is σ = 184831920. Its totient is φ = 15925248.

The previous prime is 55867387. The next prime is 55867417. The reversal of 55867392 is 29376855.

It is a happy number.

55867392 is a `hidden beast` number, since 558 + 6 + 7 + 3 + 92 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128808 + ... + 129240.

It is an arithmetic number, because the mean of its divisors is an integer number (1283555).

Almost surely, 2^55867392 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 55867392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92415960).

55867392 is an abundant number, since it is smaller than the sum of its proper divisors (128964528).

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

55867392 is a wasteful number, since it uses less digits than its factorization.

55867392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468 (or 445 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 55867392 is about 7474.4492773715. The cubic root of 55867392 is about 382.2840098018.

The spelling of 55867392 in words is "fifty-five million, eight hundred sixty-seven thousand, three hundred ninety-two".