648522 has 24 divisors (see below), whose sum is σ = 1606176. Its totient is φ = 185256.

The previous prime is 648509. The next prime is 648563. The reversal of 648522 is 225846.

648522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2448 + ... + 2699.

It is an arithmetic number, because the mean of its divisors is an integer number (66924).

2⁶⁴⁸⁵²² is an apocalyptic number.

648522 is an abundant number, since it is smaller than the sum of its proper divisors (957654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

648522 is a wasteful number, since it uses less digits than its factorization.

648522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5162 (or 5159 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 648522 is about 805.3086364867. The cubic root of 648522 is about 86.5582042250.

The spelling of 648522 in words is "six hundred forty-eight thousand, five hundred twenty-two".