654505456 has 60 divisors (see below), whose sum is σ = 1423721376. Its totient is φ = 291132160.

The previous prime is 654505447. The next prime is 654505459.

654505456 is nontrivially palindromic in base 10.

654505456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654505459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87396 + ... + 94588.

Almost surely, 2^654505456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 654505456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (711860688).

654505456 is an abundant number, since it is smaller than the sum of its proper divisors (769215920).

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

654505456 is a wasteful number, since it uses less digits than its factorization.

654505456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7270 (or 7253 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 40.

The square root of 654505456 is about 25583.3042431974. The cubic root of 654505456 is about 868.2359357783.

The spelling of 654505456 in words is "six hundred fifty-four million, five hundred five thousand, four hundred fifty-six".