255005007555 has 32 divisors (see below), whose sum is σ = 412547966208. Its totient is φ = 134492624000.

The previous prime is 255005007533. The next prime is 255005007583. The reversal of 255005007555 is 555700500552.

It is a happy number.

It is not a de Polignac number, because 255005007555 - 2¹² = 255005003459 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1151140 + ... + 1354670.

It is an arithmetic number, because the mean of its divisors is an integer number (12892123944).

Almost surely, 2^255005007555 is an apocalyptic number.

255005007555 is a deficient number, since it is larger than the sum of its proper divisors (157542958653).

255005007555 is a wasteful number, since it uses less digits than its factorization.

255005007555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204467.

The product of its (nonzero) digits is 218750, while the sum is 39.

The spelling of 255005007555 in words is "two hundred fifty-five billion, five million, seven thousand, five hundred fifty-five".