494978725 has 6 divisors (see below), whose sum is σ = 613773650. Its totient is φ = 395982960.

The previous prime is 494978707. The next prime is 494978741. The reversal of 494978725 is 527879494.

It can be written as a sum of positive squares in 3 ways, for example, as 22829284 + 472149441 = 4778^2 + 21729^2 .

It is not a de Polignac number, because 494978725 - 2⁷ = 494978597 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9899550 + ... + 9899599.

Almost surely, 2^494978725 is an apocalyptic number.

It is an amenable number.

494978725 is a deficient number, since it is larger than the sum of its proper divisors (118794925).

494978725 is a wasteful number, since it uses less digits than its factorization.

494978725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19799159 (or 19799154 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 55.

The square root of 494978725 is about 22248.1173360804. The cubic root of 494978725 is about 791.0346561852.

The spelling of 494978725 in words is "four hundred ninety-four million, nine hundred seventy-eight thousand, seven hundred twenty-five".