255510045 has 40 divisors (see below), whose sum is σ = 523463424. Its totient is φ = 116803296.

The previous prime is 255510007. The next prime is 255510067. The reversal of 255510045 is 540015552.

255510045 is a `hidden beast` number, since 2 + 555 + 100 + 4 + 5 = 666.

It is not a de Polignac number, because 255510045 - 2⁸ = 255509789 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 42229 + ... + 47898.

Almost surely, 2^255510045 is an apocalyptic number.

It is an amenable number.

255510045 is an abundant number, since it is smaller than the sum of its proper divisors (267953379).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255510045 is an equidigital number, since it uses as much as digits as its factorization.

255510045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90151 (or 90142 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 255510045 is about 15984.6815733064. The cubic root of 255510045 is about 634.5550813138. Note that the first 3 decimals are identical.

Adding to 255510045 its reverse (540015552), we get a palindrome (795525597).

The spelling of 255510045 in words is "two hundred fifty-five million, five hundred ten thousand, forty-five".