505425149 has 2 divisors, whose sum is σ = 505425150. Its totient is φ = 505425148.

The previous prime is 505425133. The next prime is 505425203. The reversal of 505425149 is 941524505.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 433056100 + 72369049 = 20810^2 + 8507^2 .

It is a cyclic number.

It is not a de Polignac number, because 505425149 - 2⁴ = 505425133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505425449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252712574 + 252712575.

It is an arithmetic number, because the mean of its divisors is an integer number (252712575).

Almost surely, 2^505425149 is an apocalyptic number.

It is an amenable number.

505425149 is a deficient number, since it is larger than the sum of its proper divisors (1).

505425149 is an equidigital number, since it uses as much as digits as its factorization.

505425149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 505425149 is about 22481.6625052508. The cubic root of 505425149 is about 796.5608348024.

It can be divided in two parts, 5054 and 25149, that added together give a palindrome (30203).

The spelling of 505425149 in words is "five hundred five million, four hundred twenty-five thousand, one hundred forty-nine".