249499753 has 2 divisors, whose sum is σ = 249499754. Its totient is φ = 249499752.

The previous prime is 249499729. The next prime is 249499763. The reversal of 249499753 is 357994942.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197486809 + 52012944 = 14053^2 + 7212^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-249499753 is a prime.

It is a super-2 number, since 2×249499753² = 124500253494122018, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 249499753.

It is not a weakly prime, because it can be changed into another prime (249499763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124749876 + 124749877.

It is an arithmetic number, because the mean of its divisors is an integer number (124749877).

Almost surely, 2^249499753 is an apocalyptic number.

It is an amenable number.

249499753 is a deficient number, since it is larger than the sum of its proper divisors (1).

249499753 is an equidigital number, since it uses as much as digits as its factorization.

249499753 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2449440, while the sum is 52.

The square root of 249499753 is about 15795.5611802810. The cubic root of 249499753 is about 629.5400632260.

The spelling of 249499753 in words is "two hundred forty-nine million, four hundred ninety-nine thousand, seven hundred fifty-three".