653248549 has 4 divisors (see below), whose sum is σ = 653302764. Its totient is φ = 653194336.

The previous prime is 653248529. The next prime is 653248559. The reversal of 653248549 is 945842356.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 542051524 + 111197025 = 23282^2 + 10545^2 .

It is a cyclic number.

It is not a de Polignac number, because 653248549 - 2¹⁷ = 653117477 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 653248499 and 653248508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653248529) 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, 9 + ... + 36145.

It is an arithmetic number, because the mean of its divisors is an integer number (163325691).

Almost surely, 2^653248549 is an apocalyptic number.

It is an amenable number.

653248549 is a deficient number, since it is larger than the sum of its proper divisors (54215).

653248549 is a wasteful number, since it uses less digits than its factorization.

653248549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54214.

The product of its digits is 1036800, while the sum is 46.

The square root of 653248549 is about 25558.7274526726. The cubic root of 653248549 is about 867.6797951936.

The spelling of 653248549 in words is "six hundred fifty-three million, two hundred forty-eight thousand, five hundred forty-nine".