494457525 has 18 divisors (see below), whose sum is σ = 885628770. Its totient is φ = 263710560.

The previous prime is 494457517. The next prime is 494457541. The reversal of 494457525 is 525754494.

It can be written as a sum of positive squares in 3 ways, for example, as 55219761 + 439237764 = 7431^2 + 20958^2 .

It is not a de Polignac number, because 494457525 - 2³ = 494457517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1098570 + ... + 1099019.

Almost surely, 2^494457525 is an apocalyptic number.

494457525 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

494457525 is a deficient number, since it is larger than the sum of its proper divisors (391171245).

494457525 is a wasteful number, since it uses less digits than its factorization.

494457525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2197605 (or 2197597 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 45.

The square root of 494457525 is about 22236.4009003256. The cubic root of 494457525 is about 790.7569122230.

The spelling of 494457525 in words is "four hundred ninety-four million, four hundred fifty-seven thousand, five hundred twenty-five".