249753925 has 12 divisors (see below), whose sum is σ = 309890880. Its totient is φ = 199676720.

The previous prime is 249753923. The next prime is 249753929. The reversal of 249753925 is 529357942.

It is not a de Polignac number, because 249753925 - 2¹ = 249753923 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249753923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76374 + ... + 79576.

It is an arithmetic number, because the mean of its divisors is an integer number (25824240).

Almost surely, 2^249753925 is an apocalyptic number.

249753925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

249753925 is a deficient number, since it is larger than the sum of its proper divisors (60136955).

249753925 is a wasteful number, since it uses less digits than its factorization.

249753925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6332 (or 6327 counting only the distinct ones).

The product of its digits is 680400, while the sum is 46.

The square root of 249753925 is about 15803.6048102957. The cubic root of 249753925 is about 629.7537670471.

It can be divided in two parts, 24975 and 3925, that added together give a square (28900 = 170²).

The spelling of 249753925 in words is "two hundred forty-nine million, seven hundred fifty-three thousand, nine hundred twenty-five".