654016553 has 4 divisors (see below), whose sum is σ = 654085968. Its totient is φ = 653947140.

The previous prime is 654016513. The next prime is 654016567. The reversal of 654016553 is 355610456.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 654016553 - 2²⁶ = 586907689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (654016513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17843 + ... + 40328.

It is an arithmetic number, because the mean of its divisors is an integer number (163521492).

Almost surely, 2^654016553 is an apocalyptic number.

It is an amenable number.

654016553 is a deficient number, since it is larger than the sum of its proper divisors (69415).

654016553 is a wasteful number, since it uses less digits than its factorization.

654016553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69414.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 654016553 is about 25573.7473398014. The cubic root of 654016553 is about 868.0196967399.

The spelling of 654016553 in words is "six hundred fifty-four million, sixteen thousand, five hundred fifty-three".