1683378255 has 32 divisors (see below), whose sum is σ = 2930526144. Its totient is φ = 820187136.

The previous prime is 1683378251. The next prime is 1683378271. The reversal of 1683378255 is 5528733861.

It is not a de Polignac number, because 1683378255 - 2² = 1683378251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1683378251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25584 + ... + 63413.

It is an arithmetic number, because the mean of its divisors is an integer number (91578942).

Almost surely, 2^1683378255 is an apocalyptic number.

1683378255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1683378255 is a deficient number, since it is larger than the sum of its proper divisors (1247147889).

1683378255 is a wasteful number, since it uses less digits than its factorization.

1683378255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89115.

The product of its digits is 1209600, while the sum is 48.

The square root of 1683378255 is about 41028.9928587091. The cubic root of 1683378255 is about 1189.5806857756.

The spelling of 1683378255 in words is "one billion, six hundred eighty-three million, three hundred seventy-eight thousand, two hundred fifty-five".