249489675 has 36 divisors (see below), whose sum is σ = 447861960. Its totient is φ = 132764160.

The previous prime is 249489673. The next prime is 249489727. The reversal of 249489675 is 576984942.

249489675 is a `hidden beast` number, since 2 + 494 + 89 + 6 + 75 = 666.

It is not a de Polignac number, because 249489675 - 2¹ = 249489673 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (249489673) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 131131 + ... + 133019.

It is an arithmetic number, because the mean of its divisors is an integer number (12440610).

Almost surely, 2^249489675 is an apocalyptic number.

249489675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

249489675 is a deficient number, since it is larger than the sum of its proper divisors (198372285).

249489675 is a wasteful number, since it uses less digits than its factorization.

249489675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2492 (or 2484 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The square root of 249489675 is about 15795.2421633858. The cubic root of 249489675 is about 629.5315868112.

The spelling of 249489675 in words is "two hundred forty-nine million, four hundred eighty-nine thousand, six hundred seventy-five".