654042500 has 60 divisors (see below), whose sum is σ = 1435940352. Its totient is φ = 260580000.

The previous prime is 654042469. The next prime is 654042509. The reversal of 654042500 is 5240456.

It is a self number, because there is not a number n which added to its sum of digits gives 654042500.

It is not an unprimeable number, because it can be changed into a prime (654042509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1077197 + ... + 1077803.

Almost surely, 2^654042500 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 654042500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (717970176).

654042500 is an abundant number, since it is smaller than the sum of its proper divisors (781897852).

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

654042500 is a wasteful number, since it uses less digits than its factorization.

654042500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062 (or 1045 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 654042500 is about 25574.2546323446. The cubic root of 654042500 is about 868.0311756590.

Adding to 654042500 its reverse (5240456), we get a palindrome (659282956).

The spelling of 654042500 in words is "six hundred fifty-four million, forty-two thousand, five hundred".