55946380 has 24 divisors (see below), whose sum is σ = 134271648. Its totient is φ = 19181568.

The previous prime is 55946377. The next prime is 55946411. The reversal of 55946380 is 8364955.

55946380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199669 + ... + 199948.

It is an arithmetic number, because the mean of its divisors is an integer number (5594652).

Almost surely, 2^55946380 is an apocalyptic number.

It is an amenable number.

55946380 is an abundant number, since it is smaller than the sum of its proper divisors (78325268).

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

55946380 is a wasteful number, since it uses less digits than its factorization.

55946380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399633 (or 399631 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 55946380 is about 7479.7312785955. The cubic root of 55946380 is about 382.4640887868.

The spelling of 55946380 in words is "fifty-five million, nine hundred forty-six thousand, three hundred eighty".