255738381 has 8 divisors (see below), whose sum is σ = 342199104. Its totient is φ = 169884960.

The previous prime is 255738349. The next prime is 255738383. The reversal of 255738381 is 183837552.

255738381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 255738381 - 2⁵ = 255738349 is a prime.

It is a super-2 number, since 2×255738381² = 130804239033002322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255738383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150841 + ... + 152526.

It is an arithmetic number, because the mean of its divisors is an integer number (42774888).

Almost surely, 2^255738381 is an apocalyptic number.

It is an amenable number.

255738381 is a deficient number, since it is larger than the sum of its proper divisors (86460723).

255738381 is a wasteful number, since it uses less digits than its factorization.

255738381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303651.

The product of its digits is 201600, while the sum is 42.

The square root of 255738381 is about 15991.8223164216. The cubic root of 255738381 is about 634.7440479612.

The spelling of 255738381 in words is "two hundred fifty-five million, seven hundred thirty-eight thousand, three hundred eighty-one".