78526855 has 16 divisors (see below), whose sum is σ = 103184928. Its totient is φ = 56896000.

The previous prime is 78526843. The next prime is 78526883. The reversal of 78526855 is 55862587.

78526855 = 3961² + 3962² + ... + 3965².

It is not a de Polignac number, because 78526855 - 2⁷ = 78526727 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12915 + ... + 17995.

It is an arithmetic number, because the mean of its divisors is an integer number (6449058).

Almost surely, 2^78526855 is an apocalyptic number.

78526855 is a deficient number, since it is larger than the sum of its proper divisors (24658073).

78526855 is a wasteful number, since it uses less digits than its factorization.

78526855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5378.

The product of its digits is 672000, while the sum is 46.

The square root of 78526855 is about 8861.5379590678. The cubic root of 78526855 is about 428.2257067157.

The spelling of 78526855 in words is "seventy-eight million, five hundred twenty-six thousand, eight hundred fifty-five".