55385910 has 32 divisors (see below), whose sum is σ = 147696480. Its totient is φ = 14769504.

The previous prime is 55385887. The next prime is 55385917. The reversal of 55385910 is 1958355.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55385917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102297 + ... + 102836.

It is an arithmetic number, because the mean of its divisors is an integer number (4615515).

Almost surely, 2^55385910 is an apocalyptic number.

55385910 is an abundant number, since it is smaller than the sum of its proper divisors (92310570).

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

55385910 is a wasteful number, since it uses less digits than its factorization.

55385910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205149 (or 205143 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 55385910 is about 7442.1710542019. The cubic root of 55385910 is about 381.1826268119.

The spelling of 55385910 in words is "fifty-five million, three hundred eighty-five thousand, nine hundred ten".