551505045 has 48 divisors (see below), whose sum is σ = 1105453440. Its totient is φ = 232718976.

The previous prime is 551505029. The next prime is 551505049. The reversal of 551505045 is 540505155.

551505045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 551505045 - 2⁴ = 551505029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551505049) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19305 + ... + 38414.

It is an arithmetic number, because the mean of its divisors is an integer number (23030280).

Almost surely, 2^551505045 is an apocalyptic number.

It is an amenable number.

551505045 is an abundant number, since it is smaller than the sum of its proper divisors (553948395).

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

551505045 is a wasteful number, since it uses less digits than its factorization.

551505045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57754 (or 57747 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 30.

The square root of 551505045 is about 23484.1445447774. The cubic root of 551505045 is about 820.0679326032.

The spelling of 551505045 in words is "five hundred fifty-one million, five hundred five thousand, forty-five".