654505454 has 4 divisors (see below), whose sum is σ = 981758184. Its totient is φ = 327252726.

The previous prime is 654505447. The next prime is 654505459. The reversal of 654505454 is 454505456.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×654505454² = 856754778631492232, which contains 22 as substring.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163626362 + ... + 163626365.

It is an arithmetic number, because the mean of its divisors is an integer number (245439546).

Almost surely, 2^654505454 is an apocalyptic number.

654505454 is a deficient number, since it is larger than the sum of its proper divisors (327252730).

654505454 is a wasteful number, since it uses less digits than its factorization.

654505454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327252729.

The product of its (nonzero) digits is 240000, while the sum is 38.

The square root of 654505454 is about 25583.3042041094. The cubic root of 654505454 is about 868.2359348939.

The spelling of 654505454 in words is "six hundred fifty-four million, five hundred five thousand, four hundred fifty-four".