255603572003 has 4 divisors (see below), whose sum is σ = 275265385248. Its totient is φ = 235941758760.

The previous prime is 255603571973. The next prime is 255603572051. The reversal of 255603572003 is 300275306552.

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 255603572003 - 2¹⁰ = 255603570979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255603572053) 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, 9830906603 + ... + 9830906628.

It is an arithmetic number, because the mean of its divisors is an integer number (68816346312).

Almost surely, 2^255603572003 is an apocalyptic number.

255603572003 is a deficient number, since it is larger than the sum of its proper divisors (19661813245).

255603572003 is a wasteful number, since it uses less digits than its factorization.

255603572003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19661813244.

The product of its (nonzero) digits is 189000, while the sum is 38.

Adding to 255603572003 its reverse (300275306552), we get a palindrome (555878878555).

The spelling of 255603572003 in words is "two hundred fifty-five billion, six hundred three million, five hundred seventy-two thousand, three".