648614503 has 2 divisors, whose sum is σ = 648614504. Its totient is φ = 648614502.

The previous prime is 648614497. The next prime is 648614509. The reversal of 648614503 is 305416846.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (648614497) and next prime (648614509).

It is a cyclic number.

It is not a de Polignac number, because 648614503 - 2¹⁷ = 648483431 is a prime.

It is equal to p_33725188 and since 648614503 and 33725188 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (648614509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324307251 + 324307252.

It is an arithmetic number, because the mean of its divisors is an integer number (324307252).

Almost surely, 2^648614503 is an apocalyptic number.

648614503 is a deficient number, since it is larger than the sum of its proper divisors (1).

648614503 is an equidigital number, since it uses as much as digits as its factorization.

648614503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 648614503 is about 25467.9112414034. The cubic root of 648614503 is about 865.6231948648.

The spelling of 648614503 in words is "six hundred forty-eight million, six hundred fourteen thousand, five hundred three".