255447415 has 4 divisors (see below), whose sum is σ = 306536904. Its totient is φ = 204357928.

The previous prime is 255447383. The next prime is 255447427. The reversal of 255447415 is 514744552.

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 255447415 - 2⁵ = 255447383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25544737 + ... + 25544746.

It is an arithmetic number, because the mean of its divisors is an integer number (76634226).

Almost surely, 2^255447415 is an apocalyptic number.

255447415 is a deficient number, since it is larger than the sum of its proper divisors (51089489).

255447415 is an equidigital number, since it uses as much as digits as its factorization.

255447415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51089488.

The product of its digits is 112000, while the sum is 37.

The square root of 255447415 is about 15982.7223901312. The cubic root of 255447415 is about 634.5032302116.

The spelling of 255447415 in words is "two hundred fifty-five million, four hundred forty-seven thousand, four hundred fifteen".