249838801 has 2 divisors, whose sum is σ = 249838802. Its totient is φ = 249838800.

The previous prime is 249838781. The next prime is 249838867. The reversal of 249838801 is 108838942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 249608401 + 230400 = 15799^2 + 480^2 .

It is a cyclic number.

It is not a de Polignac number, because 249838801 - 2⁵ = 249838769 is a prime.

It is a super-3 number, since 3×249838801³ (a number of 26 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (249838891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124919400 + 124919401.

It is an arithmetic number, because the mean of its divisors is an integer number (124919401).

Almost surely, 2^249838801 is an apocalyptic number.

It is an amenable number.

249838801 is a deficient number, since it is larger than the sum of its proper divisors (1).

249838801 is an equidigital number, since it uses as much as digits as its factorization.

249838801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 249838801 is about 15806.2899188899. The cubic root of 249838801 is about 629.8250971600.

The spelling of 249838801 in words is "two hundred forty-nine million, eight hundred thirty-eight thousand, eight hundred one".