648523063 has 4 divisors (see below), whose sum is σ = 648722128. Its totient is φ = 648324000.

The previous prime is 648523003. The next prime is 648523091. The reversal of 648523063 is 360325846.

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

It is a cyclic number.

It is not a de Polignac number, because 648523063 - 2⁹ = 648522551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648523003) 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, 94563 + ... + 101188.

It is an arithmetic number, because the mean of its divisors is an integer number (162180532).

Almost surely, 2^648523063 is an apocalyptic number.

648523063 is a deficient number, since it is larger than the sum of its proper divisors (199065).

648523063 is a wasteful number, since it uses less digits than its factorization.

648523063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199064.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 648523063 is about 25466.1159779029. The cubic root of 648523063 is about 865.5825151778.

The spelling of 648523063 in words is "six hundred forty-eight million, five hundred twenty-three thousand, sixty-three".