250025449 has 2 divisors, whose sum is σ = 250025450. Its totient is φ = 250025448.

The previous prime is 250025437. The next prime is 250025453. The reversal of 250025449 is 944520052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 248283049 + 1742400 = 15757^2 + 1320^2 .

It is a cyclic number.

It is not a de Polignac number, because 250025449 - 2⁵ = 250025417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 250025449.

It is not a weakly prime, because it can be changed into another prime (250025429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125012724 + 125012725.

It is an arithmetic number, because the mean of its divisors is an integer number (125012725).

Almost surely, 2^250025449 is an apocalyptic number.

It is an amenable number.

250025449 is a deficient number, since it is larger than the sum of its proper divisors (1).

250025449 is an equidigital number, since it uses as much as digits as its factorization.

250025449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 250025449 is about 15812.1930484041. The cubic root of 250025449 is about 629.9819000427.

The spelling of 250025449 in words is "two hundred fifty million, twenty-five thousand, four hundred forty-nine".