255366451 has 4 divisors (see below), whose sum is σ = 255408952. Its totient is φ = 255323952.

The previous prime is 255366421. The next prime is 255366509. The reversal of 255366451 is 154663552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 255366451 - 2⁹ = 255365939 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 255366451.

It is not an unprimeable number, because it can be changed into a prime (255366421) 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, 10386 + ... + 24871.

It is an arithmetic number, because the mean of its divisors is an integer number (63852238).

Almost surely, 2^255366451 is an apocalyptic number.

255366451 is a deficient number, since it is larger than the sum of its proper divisors (42501).

255366451 is an equidigital number, since it uses as much as digits as its factorization.

255366451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42500.

The product of its digits is 108000, while the sum is 37.

The square root of 255366451 is about 15980.1893292914. The cubic root of 255366451 is about 634.4361879100.

The spelling of 255366451 in words is "two hundred fifty-five million, three hundred sixty-six thousand, four hundred fifty-one".