685337055 has 16 divisors (see below), whose sum is σ = 1180888800. Its totient is φ = 337396608.

The previous prime is 685337039. The next prime is 685337063. The reversal of 685337055 is 550733586.

It is not a de Polignac number, because 685337055 - 2⁴ = 685337039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 685336998 and 685337016.

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, 1757080 + ... + 1757469.

It is an arithmetic number, because the mean of its divisors is an integer number (73805550).

Almost surely, 2^685337055 is an apocalyptic number.

685337055 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

685337055 is a deficient number, since it is larger than the sum of its proper divisors (495551745).

685337055 is a wasteful number, since it uses less digits than its factorization.

685337055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3514570.

The product of its (nonzero) digits is 378000, while the sum is 42.

The square root of 685337055 is about 26178.9429694936. The cubic root of 685337055 is about 881.6605418763.

The spelling of 685337055 in words is "six hundred eighty-five million, three hundred thirty-seven thousand, fifty-five".