255238379 has 6 divisors (see below), whose sum is σ = 278499684. Its totient is φ = 231986720.

The previous prime is 255238351. The next prime is 255238439. The reversal of 255238379 is 973832552.

It is not a de Polignac number, because 255238379 - 2¹⁶ = 255172843 is a prime.

It is a super-2 number, since 2×255238379² = 130293260229095282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255238349) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50579 + ... + 55395.

It is an arithmetic number, because the mean of its divisors is an integer number (46416614).

Almost surely, 2^255238379 is an apocalyptic number.

255238379 is a deficient number, since it is larger than the sum of its proper divisors (23261305).

255238379 is an frugal number, since it uses more digits than its factorization.

255238379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9645 (or 4828 counting only the distinct ones).

The product of its digits is 453600, while the sum is 44.

The square root of 255238379 is about 15976.1816151420. The cubic root of 255238379 is about 634.3301088507.

Multiplying 255238379 by its sum of digits (44), we get a square (11230488676 = 105974²).

The spelling of 255238379 in words is "two hundred fifty-five million, two hundred thirty-eight thousand, three hundred seventy-nine".