83078555 has 16 divisors (see below), whose sum is σ = 114216960. Its totient is φ = 56827872.

The previous prime is 83078531. The next prime is 83078603. The reversal of 83078555 is 55587038.

It is a cyclic number.

It is not a de Polignac number, because 83078555 - 2⁸ = 83078299 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 12662 + ... + 18068.

It is an arithmetic number, because the mean of its divisors is an integer number (7138560).

Almost surely, 2^83078555 is an apocalyptic number.

83078555 is a deficient number, since it is larger than the sum of its proper divisors (31138405).

83078555 is a wasteful number, since it uses less digits than its factorization.

83078555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5858.

The product of its (nonzero) digits is 168000, while the sum is 41.

The square root of 83078555 is about 9114.7438252537. The cubic root of 83078555 is about 436.3446391995.

The spelling of 83078555 in words is "eighty-three million, seventy-eight thousand, five hundred fifty-five".