255515003 has 4 divisors (see below), whose sum is σ = 256182528. Its totient is φ = 254847480.

The previous prime is 255514991. The next prime is 255515011. The reversal of 255515003 is 300515552.

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 255515003 - 2²⁶ = 188406139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255515033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333188 + ... + 333953.

It is an arithmetic number, because the mean of its divisors is an integer number (64045632).

Almost surely, 2^255515003 is an apocalyptic number.

255515003 is a deficient number, since it is larger than the sum of its proper divisors (667525).

255515003 is an equidigital number, since it uses as much as digits as its factorization.

255515003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667524.

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 255515003 is about 15984.8366585336. The cubic root of 255515003 is about 634.5591856583.

The spelling of 255515003 in words is "two hundred fifty-five million, five hundred fifteen thousand, three".