255369091 has 4 divisors (see below), whose sum is σ = 255401992. Its totient is φ = 255336192.

The previous prime is 255369083. The next prime is 255369113. The reversal of 255369091 is 190963552.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 255369091 - 2³ = 255369083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255369031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2371 + ... + 22723.

It is an arithmetic number, because the mean of its divisors is an integer number (63850498).

Almost surely, 2^255369091 is an apocalyptic number.

255369091 is a deficient number, since it is larger than the sum of its proper divisors (32901).

255369091 is a wasteful number, since it uses less digits than its factorization.

255369091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32900.

The product of its (nonzero) digits is 72900, while the sum is 40.

The square root of 255369091 is about 15980.2719313534. The cubic root of 255369091 is about 634.4383741875.

The spelling of 255369091 in words is "two hundred fifty-five million, three hundred sixty-nine thousand, ninety-one".