648678254 has 16 divisors (see below), whose sum is σ = 1112745600. Its totient is φ = 277823544.

The previous prime is 648678227. The next prime is 648678307. The reversal of 648678254 is 452876846.

It is a happy number.

648678254 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8357 + ... + 36975.

It is an arithmetic number, because the mean of its divisors is an integer number (69546600).

Almost surely, 2^648678254 is an apocalyptic number.

648678254 is a deficient number, since it is larger than the sum of its proper divisors (464067346).

648678254 is a wasteful number, since it uses less digits than its factorization.

648678254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30247.

The product of its digits is 2580480, while the sum is 50.

The square root of 648678254 is about 25469.1628052435. The cubic root of 648678254 is about 865.6515540499.

The spelling of 648678254 in words is "six hundred forty-eight million, six hundred seventy-eight thousand, two hundred fifty-four".