1378425255 has 8 divisors (see below), whose sum is σ = 2205480432. Its totient is φ = 735160128.

The previous prime is 1378425247. The next prime is 1378425271. The reversal of 1378425255 is 5525248731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1378425255 - 2³ = 1378425247 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45947494 + ... + 45947523.

It is an arithmetic number, because the mean of its divisors is an integer number (275685054).

Almost surely, 2^1378425255 is an apocalyptic number.

1378425255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1378425255 is a deficient number, since it is larger than the sum of its proper divisors (827055177).

1378425255 is an equidigital number, since it uses as much as digits as its factorization.

1378425255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91895025.

The product of its digits is 336000, while the sum is 42.

The square root of 1378425255 is about 37127.1498367435. The cubic root of 1378425255 is about 1112.9126370659.

The spelling of 1378425255 in words is "one billion, three hundred seventy-eight million, four hundred twenty-five thousand, two hundred fifty-five".