255436881 has 8 divisors (see below), whose sum is σ = 389237184. Its totient is φ = 145963920.

The previous prime is 255436859. The next prime is 255436903. The reversal of 255436881 is 188634552.

255436881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (255436859) and next prime (255436903).

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

It is not a de Polignac number, because 255436881 - 2¹¹ = 255434833 is a prime.

It is a super-2 number, since 2×255436881² = 130496000350016322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (255431881) 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, 6081810 + ... + 6081851.

It is an arithmetic number, because the mean of its divisors is an integer number (48654648).

Almost surely, 2^255436881 is an apocalyptic number.

255436881 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

255436881 is a deficient number, since it is larger than the sum of its proper divisors (133800303).

255436881 is a wasteful number, since it uses less digits than its factorization.

255436881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12163671.

The product of its digits is 230400, while the sum is 42.

The square root of 255436881 is about 15982.3928433761. The cubic root of 255436881 is about 634.4945083267.

The spelling of 255436881 in words is "two hundred fifty-five million, four hundred thirty-six thousand, eight hundred eighty-one".