1375998255 has 24 divisors (see below), whose sum is σ = 2387022768. Its totient is φ = 733262976.

The previous prime is 1375998251. The next prime is 1375998257. The reversal of 1375998255 is 5528995731.

It is not a de Polignac number, because 1375998255 - 2² = 1375998251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375998251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45819 + ... + 69651.

It is an arithmetic number, because the mean of its divisors is an integer number (99459282).

Almost surely, 2^1375998255 is an apocalyptic number.

1375998255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1375998255 is a deficient number, since it is larger than the sum of its proper divisors (1011024513).

1375998255 is a wasteful number, since it uses less digits than its factorization.

1375998255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25127 (or 25124 counting only the distinct ones).

The product of its digits is 3402000, while the sum is 54.

The square root of 1375998255 is about 37094.4504609517. The cubic root of 1375998255 is about 1112.2590831265.

The spelling of 1375998255 in words is "one billion, three hundred seventy-five million, nine hundred ninety-eight thousand, two hundred fifty-five".