654455650 has 12 divisors (see below), whose sum is σ = 1217287602. Its totient is φ = 261782240.

The previous prime is 654455629. The next prime is 654455651. The reversal of 654455650 is 56554456.

It can be written as a sum of positive squares in 3 ways, for example, as 630160609 + 24295041 = 25103^2 + 4929^2 .

It is not an unprimeable number, because it can be changed into a prime (654455651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6544507 + ... + 6544606.

Almost surely, 2^654455650 is an apocalyptic number.

654455650 is a deficient number, since it is larger than the sum of its proper divisors (562831952).

654455650 is a wasteful number, since it uses less digits than its factorization.

654455650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13089125 (or 13089120 counting only the distinct ones).

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

The square root of 654455650 is about 25582.3308164053. The cubic root of 654455650 is about 868.2139117928.

The spelling of 654455650 in words is "six hundred fifty-four million, four hundred fifty-five thousand, six hundred fifty".