648475653 has 24 divisors (see below), whose sum is σ = 1032991392. Its totient is φ = 360539424.

The previous prime is 648475649. The next prime is 648475657. The reversal of 648475653 is 356574846.

It is an interprime number because it is at equal distance from previous prime (648475649) and next prime (648475657).

It is not a de Polignac number, because 648475653 - 2² = 648475649 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648475657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54175 + ... + 65052.

It is an arithmetic number, because the mean of its divisors is an integer number (43041308).

Almost surely, 2^648475653 is an apocalyptic number.

It is an amenable number.

648475653 is a deficient number, since it is larger than the sum of its proper divisors (384515739).

648475653 is a wasteful number, since it uses less digits than its factorization.

648475653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119281 (or 119274 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 48.

The square root of 648475653 is about 25465.1851161542. The cubic root of 648475653 is about 865.5614219844.

It can be divided in two parts, 64847 and 5653, that added together give a triangular number (70500 = T₃₇₅).

The spelling of 648475653 in words is "six hundred forty-eight million, four hundred seventy-five thousand, six hundred fifty-three".