78585055 has 8 divisors (see below), whose sum is σ = 94420800. Its totient is φ = 62788896.

The previous prime is 78585049. The next prime is 78585079. The reversal of 78585055 is 55058587.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78585055 - 2³ = 78585047 is a prime.

It is a super-2 number, since 2×78585055² = 12351221738706050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5335 + ... + 13624.

It is an arithmetic number, because the mean of its divisors is an integer number (11802600).

Almost surely, 2^78585055 is an apocalyptic number.

78585055 is a deficient number, since it is larger than the sum of its proper divisors (15835745).

78585055 is a wasteful number, since it uses less digits than its factorization.

78585055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19793.

The product of its (nonzero) digits is 280000, while the sum is 43.

The square root of 78585055 is about 8864.8212051908. The cubic root of 78585055 is about 428.3314734266.

The spelling of 78585055 in words is "seventy-eight million, five hundred eighty-five thousand, fifty-five".