55910285 has 4 divisors (see below), whose sum is σ = 67092348. Its totient is φ = 44728224.

The previous prime is 55910279. The next prime is 55910287. The reversal of 55910285 is 58201955.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26512201 + 29398084 = 5149^2 + 5422^2 .

It is a cyclic number.

It is not a de Polignac number, because 55910285 - 2²⁴ = 39133069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55910287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5591024 + ... + 5591033.

It is an arithmetic number, because the mean of its divisors is an integer number (16773087).

Almost surely, 2^55910285 is an apocalyptic number.

It is an amenable number.

55910285 is a deficient number, since it is larger than the sum of its proper divisors (11182063).

55910285 is a wasteful number, since it uses less digits than its factorization.

55910285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11182062.

The product of its (nonzero) digits is 18000, while the sum is 35.

The square root of 55910285 is about 7477.3180352316. The cubic root of 55910285 is about 382.3818194710.

The spelling of 55910285 in words is "fifty-five million, nine hundred ten thousand, two hundred eighty-five".