648485356 has 24 divisors (see below), whose sum is σ = 1202624640. Its totient is φ = 305424000.

The previous prime is 648485351. The next prime is 648485381. The reversal of 648485356 is 653584846.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (648485351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63420 + ... + 72931.

It is an arithmetic number, because the mean of its divisors is an integer number (50109360).

Almost surely, 2^648485356 is an apocalyptic number.

It is an amenable number.

648485356 is a deficient number, since it is larger than the sum of its proper divisors (554139284).

648485356 is a wasteful number, since it uses less digits than its factorization.

648485356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136425 (or 136423 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 49.

The square root of 648485356 is about 25465.3756304516. The cubic root of 648485356 is about 865.5657390319.

The spelling of 648485356 in words is "six hundred forty-eight million, four hundred eighty-five thousand, three hundred fifty-six".