55339680 has 192 divisors, whose sum is σ = 195084288. Its totient is φ = 13071360.

The previous prime is 55339673. The next prime is 55339693. The reversal of 55339680 is 8693355.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 248049 + ... + 248271.

It is an arithmetic number, because the mean of its divisors is an integer number (1016064).

Almost surely, 2^55339680 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 55339680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97542144).

55339680 is an abundant number, since it is smaller than the sum of its proper divisors (139744608).

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

55339680 is a wasteful number, since it uses less digits than its factorization.

55339680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 55339680 is about 7439.0644573091. The cubic root of 55339680 is about 381.0765409976.

The spelling of 55339680 in words is "fifty-five million, three hundred thirty-nine thousand, six hundred eighty".