255000505553 has 4 divisors (see below), whose sum is σ = 259322548080. Its totient is φ = 250678463028.

The previous prime is 255000505517. The next prime is 255000505559. The reversal of 255000505553 is 355505000552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 255000505553 - 2²⁶ = 254933396689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255000505559) 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, 2161021175 + ... + 2161021292.

It is an arithmetic number, because the mean of its divisors is an integer number (64830637020).

Almost surely, 2^255000505553 is an apocalyptic number.

It is an amenable number.

255000505553 is a deficient number, since it is larger than the sum of its proper divisors (4322042527).

255000505553 is an equidigital number, since it uses as much as digits as its factorization.

255000505553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4322042526.

The product of its (nonzero) digits is 93750, while the sum is 35.

The spelling of 255000505553 in words is "two hundred fifty-five billion, five hundred five thousand, five hundred fifty-three".