55258646 has 4 divisors (see below), whose sum is σ = 82887972. Its totient is φ = 27629322.

The previous prime is 55258607. The next prime is 55258657. The reversal of 55258646 is 64685255.

55258646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 13814660 + ... + 13814663.

It is an arithmetic number, because the mean of its divisors is an integer number (20721993).

Almost surely, 2^55258646 is an apocalyptic number.

55258646 is a deficient number, since it is larger than the sum of its proper divisors (27629326).

55258646 is a wasteful number, since it uses less digits than its factorization.

55258646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27629325.

The product of its digits is 288000, while the sum is 41.

The square root of 55258646 is about 7433.6159438055. The cubic root of 55258646 is about 380.8904464309.

The spelling of 55258646 in words is "fifty-five million, two hundred fifty-eight thousand, six hundred forty-six".