249773033 has 2 divisors, whose sum is σ = 249773034. Its totient is φ = 249773032.

The previous prime is 249773011. The next prime is 249773039. The reversal of 249773033 is 330377942.

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., 233386729 + 16386304 = 15277^2 + 4048^2 .

It is a cyclic number.

It is not a de Polignac number, because 249773033 - 2⁸ = 249772777 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (249773039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124886516 + 124886517.

It is an arithmetic number, because the mean of its divisors is an integer number (124886517).

Almost surely, 2^249773033 is an apocalyptic number.

It is an amenable number.

249773033 is a deficient number, since it is larger than the sum of its proper divisors (1).

249773033 is an equidigital number, since it uses as much as digits as its factorization.

249773033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 38.

The square root of 249773033 is about 15804.2093443487. The cubic root of 249773033 is about 629.7698268923.

The spelling of 249773033 in words is "two hundred forty-nine million, seven hundred seventy-three thousand, thirty-three".