249795529 has 2 divisors, whose sum is σ = 249795530. Its totient is φ = 249795528.

The previous prime is 249795509. The next prime is 249795541. The reversal of 249795529 is 925597942.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197262025 + 52533504 = 14045^2 + 7248^2 .

It is a cyclic number.

It is not a de Polignac number, because 249795529 - 2²⁵ = 216241097 is a prime.

It is not a weakly prime, because it can be changed into another prime (249795509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124897764 + 124897765.

It is an arithmetic number, because the mean of its divisors is an integer number (124897765).

Almost surely, 2^249795529 is an apocalyptic number.

It is an amenable number.

249795529 is a deficient number, since it is larger than the sum of its proper divisors (1).

249795529 is an equidigital number, since it uses as much as digits as its factorization.

249795529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2041200, while the sum is 52.

The square root of 249795529 is about 15804.9210374491. The cubic root of 249795529 is about 629.7887332257.

The spelling of 249795529 in words is "two hundred forty-nine million, seven hundred ninety-five thousand, five hundred twenty-nine".